Pathway Of Urine Through The Urinary System

Tubular Secretion- substances move from blood into the nephron and enter filtrate, larger substances Occurs in PCT, LOH, DCT Wastes electrolytes water drugs H ions, penicillin, ammonia, K Happens faster than filtration CONTROL OF URINE FORMATION At the same time as tubular absorption takes place in the PCT, tubular excretion is also occurring. 1% of the originally filtered volume but includes high concentrations of urea and creatinine, and variable concentrations of ions. Disorders Related to the Urinary System. Urinary System Explained. I did this in the lab, well, I traced the amount of urine acid in urine This has to do with the demolition of purine nucleotides. Your kidneys, located toward the back in your upper abdomen, produce urine by filtering waste and fluid from your blood. OBJECTIVES : State the function of the Urinary system//Identify and explain the functions of the organs of the urinary system//Identify the main structures within the kidney and describe their functions//Identify the structures within a nephron and how it filters blood to form urine//Describe the pathway of urine from formation to being removed from. It should be pointed out that urinary secretion of H + also occurs during tubular bicarbonate resorption as discussed in renal bicarbonate excretion. The Urinary System: Urinary Retention Essay 539 Words 3 Pages Urination is controlled by a complex central nervous system mechanism that coordinates urine storage and release by the regulation of smooth muscle in the bladder and urethra. The urethra is a small tube through which urine flows from the bladder to the exterior of the body. Your kidneys, ureters, and bladder are part of your urinary tract. The urine then passes out of the kidney through the renal pelvis, into the ureter, and down to the bladder. As bladder fills, tension on the walls stimulates the internal urethral sphincter to relax and you feel like going. it is one of the most important system of our body, that helps to filter water and other substance from our body. What is the path of urine through the urinary system #55556500007 – Urinary System Flow Chart, with 35 Similar files. Identify the parts of a nephron and their functions. In the male, the base of the bladder is encircled by the prostate gland- Entering this gland are the two vas deferens, one from each testis, which conduct the semen to the urethra. In males, the urethra is seven to eight inches long. The Urinary System The urinary system is concerned with the formation and elimination of urine. Blood travels away from the heart through arteries, which branch into smaller vessels, the arterioles. The urine collected in the bladder is passed into the external environment from the body through an opening called the urethra. The ureter connects the kidney to the bladder. 4) production of hormones: erythropoietin, renin, calcitriol. Common signs and symptoms include back pain (due to the location of the kidneys), fever, and nausea or vomiting. 5 1 The U rinary System Urine production and elim ination are one of the m ost im portant m echanism s of body hom eostasis all body system s are directly or indirectly affected by kidney function eg. 3) regulate blood pressure and blood volume. When we urinate, the urine travels from the urinary bladder through the urethra and out of the body. Functional Anatomy of the Kidney and Renal Mechanisms. The urinary bladder collects and stores the urine until urination. ending point: the water molecule is excreted from the body. BPH is a progressive disorder and narrows the neck of the bladder leading to urinary retention. In humans, the kidneys are two small organs situated near the vertebral column at the small of the back, the left lying somewhat higher than the right. 1) Kidney regulate blood volume and composition help to regulate blood pressure ,PH and glucose level,produce two hormone (calcitriol and erythropoietin) and excrete waste in urine. Urinary Pathway Also known as the renal system , the urinary system comprises of kidneys, ureters, urinary bladder, and urethra. This sends signals through the nervous system and creates the “urge” to urinate. Sometimes, part of the urinary tract can become. it is one of the most important system of our body, that helps to filter water and other substance from our body. Urinary system. Regulation of the concentration of solutes and water in. Male Urinary System. 17 Urinary System (Kidney Labeling) and show off your skills. The filtered blood is then collected in to a series of larger veins and exits the kidney through the renal vein. Male urethras are much longer and function as both a pathway for urine and semen, so it is considered part of the reproductive system and urinary system in males. Kidney stones can form when mineral and acid salts in the urine crystallize and stick together. -Define excretion and identify the systems that excrete wastes. Quickly memorize the terms, phrases and much more. The urinary system eliminates wastes and excess fluid from the body, maintains blood volume and pressure, regulates electrolyte balance, level of metabolites, and maintains blood pH. of your cells, so the urinary system serves to eliminate waste created in every part of your body. Lighter urine means you have excess water in your body. The urinary system is composed of the kidneys, ureters, bladder and urethra. From there, urine passes through the urethra and out of. the holes at the tip of the papillae through which urine drains What structures are included in the lower urinary tract renal pelvis, calyces, ureters, urinary bladder, urethra. Renal system, in humans, organ system that includes the kidneys, where urine is produced, and the ureters, bladder, and urethra for the passage, storage, and voiding of urine. Mihael Rosano. It is the system of production, storage and elimination of urine. Bio 105: Urinary System and Excretion Lecture 19 Chapter 16 Outline •Function •Organs of the Urinary System •Kidneys •Function •Structure •Urine Formation •Hormonal regulation •Kidney hormones •Other kidney functions •Urinary bladder and urination Urinary System •Digestive System •Eliminates waste from digestive tract. com makes it easy to get the grade you want!. Most are caused by a narrowing at some point in the urinary tract. This allows normal urination to happen. From the bladder, urine is excreted out through the urethra Get this answer with Chegg Study. Urea Recycling In order to increase the magnitude of the medullary urea gradient, the kidneys recirculate the urea within the renal interstitium. The kidneys help regulate blood volume. The Urinary System. The urethra is a tube that carries urine from the urinary bladder to the outside of the body. The bladder is an organ of the urinary system. penis in males; also serves in males as the exit tube for the reproductive system. In many respects the human excretory, or urinary, system resembles those of other mammalian species, but it has its own unique structural and functional characteristics. Patients with alterations in urinary elimination often suffer emotionally from body image changes. As you can see, the male urinary system is analogous to the female with a few differences. Urinary system consist of two kidney, two uretus,one urinary bladder,and one urethra. The other possible route is through the bloodstream, usually to the kidneys. The urinary system consists of two kidneys that filter the blood, two ureters, a urinary bladder, and a urethra to convey waste substances to the outside. Urine is produced in the kidneys. Renal System esquemas. A complicated chemical exchange takes place, as waste materials and water leave your blood and enter your urinary system. In this lesson, we'll explore how toxins are filtered by our organs and how urine is formed and expelled with the nephron, bladder. Your urinary tract is the pathway that makes up your urinary system. •Be able to trace the pathway of urine through the body from the organ of production to its excretion from the body. the kidneys control the volume of interstitial fluid and blood under the direction of certain. Urinary Incontinence in Adults. The kidneys produce urine to eliminate waste. Ureters (2) – Transport urine from kidneys to bladder. -use of a catheter to drain urine from the bladder -use of a cystoscope to examine the bladder -surgery on the urinary tract -conditions such as prostate enlargement and kidney stones that prevent the efficient flow of urine from the bladder -effects or abnormalities in the urinary tract that block the flow of urine. Urine is concentrated by an entirely passive process as water leaves the lumen of collecting ducts to come into equilibrium with the hypertonic fluid surrounding its terminations. Erythrocytes e. It gets rid of the waste products that are created when food is transformed into energy. Infections of the kidneys are associated with serum and kidney immunoglobulin synthesis and type specific antibodies have been detected in the host’s urine. One of the major functions of the Urinary system is the process of excretion. A complicated chemical exchange takes place, as waste materials and water leave your blood and enter your urinary system. Structures. A urinary tract infection (UTI) is an inflammation of your body's urine-producing system, including your kidneys, bladder and urethra. When you eat, the food travels down a long narrow tube called the esophagus, into your stomach. That urine then travels through your ureters to your bladder,. Study Flashcards On Chapter 26 Urinary System at Cram. Urine Is 95% Water. The urinary bladder is able to retain urine and to expand in order to be able to retain more urine, when it is full it send nerve impulses and expulses urine through the urethra out of the body. Parasympathetic preganglionic neurons innervating the lower urinary tract are located in the lateral part of the sacral intermediate gray matter in a region termed the sacral parasympathetic nucleus. Reabsorption of water is hormonally controlled. The urinary catheter system includes a urinary catheter, a connector and a medical implement which is readily attached to or removed from the connector. on StudyBlue. Urinary catheters are used to remove urine from the bladder in the following situations: To relieve a physical obstruction to urine flow, such as a urinary-tract stone, a bladder tumor or an enlarged prostate. The following five pages show the clinical pathway for your condition. Many urinary problems can be solved by drinking enough water. The urinary tract is a component of the secretory immune system as it is the first defence system encountered by invading uropathogens. The organs of the urinary system include the kidneys, renal pelvis, ureters, bladder and urethra. The system works with the lungs, kidneys, and the. The urine is released into the urethra, the final conducting pathway which emerges from the base of the bladder. The excretory functions of the urinary system are performed by the two kidneys, the Organs that filters blood and produce urine. Quickly memorize the terms, phrases and much more. The urine flows out of the nephron tubule into a collecting duct. If the stone is small, it can pass easily through the urinary system and out of the body. By-Sanchari Sinha. The urinary system includes two kidneys, two ureters, the bladder, two sphincter muscles, and the urethra. Include the relevant tissue layers in each excretory system organ that allows urine to move through the system and be stored. -List several functions of the kidneys in addition to urine formation. Infections of the kidneys are considered separately in acute pyelonephritis. 2 Determine whether the patient has risks for an allergic reaction to contrast dyes or a drug–contrast dye adverse interaction before testing procedures. After the kidneys make urine, it leaves the body using the rest of the urinary tract as a pathway. The urine then passes through the ureters, which are tubes connecting the kidneys and bladder. It passes out of the kidney through the renal pelvis, into the ureter, and down to the bladder. It is also a major homeostatic organ. In males the urethra also functions as a reproductive tract organ. Finding blood in the urine supports the diagnosis, but not all stones cause blood in the urine. is thought to involve a spinobulbospinal pathway like the actions of bladder afferents [Morrison 1987] Role: Urinary flow through the urethra could alter the following vesicourethral activity:. The urinary bladder is able to retain urine and to expand in order to be able to retain more urine, when it is full it send nerve impulses and expulses urine through the urethra out of the body. List 4 functions of the urinary system. , Bladder is controlled by this type of muscle. Male urinary system Your urinary system — which includes the kidneys, ureters, bladder and urethra — is responsible for removing waste from your body through urine. note each microscope and/or gross structure it passes through in its travels. The kidneys are involved in the production of urine by filtering out excess water waste products. 17 Urinary System (Kidney Labeling) and show off your skills. The urinary system is made-up of the kidneys, ureters, bladder, and urethra. The urinary system (see left) is made-up of the kidneys, ureters, bladder, and urethra. Tracing the path of a juicy hamburger through digestion until liquid waste is excreted through the urinary system will be easier. B) Lie in superior lumbar region of the posterior abdominal wall (T. The bladder stores urine until it is ready to be passed out. The urine flows out of the nephron tubule into a collecting duct. The kidneys are the part of the urinary tract that makes urine (pee). The kidneys are involved in the production of urine by filtering out excess water waste products. After a single intravenous injection of radiolabeled trivalent inorganic As (III) in human volunteers, most of the arsenic was cleared through urinary excretion within 2 days, although a small amount of arsenic was found in the urine up to 2 weeks later [ATSDR 2007]. of your cells, so the urinary system serves to eliminate waste created in every part of your body. Male urethras are much longer and function as both a pathway for urine and semen, so it is considered part of the reproductive system and urinary system in males. The ureters, in both males and females, transports the urine from the kidneys to the bladder where it is stored until it is convenient to release through the urethra. The Urinary System • The urinary system is composed of paired kidneys and ureters, the urinary bladder, and the urethra. Because the pathways of the urinary system are continuous, bacteria present in one part may travel to another. The bladder is emptied through the urethra and urine is removed from the body. The epididymis is a tortuously coiled structure topping the testis, and it receives immature sperm from the testis and stores it for several days. Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. •Be able to identify the main structures of the kidney. On leaving the urinary bladder, urine passes through the urethra, which conducts the urine to the exterior. Urine has salts, toxins, and water that need to be filtered out of the blood. Overview of Urinary System Structures. com makes it easy to get the grade you want!. Kidney Stones. The primary structures of the urinary system include the kidneys, ureters, bladder, and urethra. · Urinary Bladder- Smooth, collapsible muscular sac that store urine temporarily. Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. The excretory system is a system of organs that removes waste products from the body. By the katalase reaction (with O2) you are able to distinghuish urine and byproducts and trace it. There are many causes of urinary tract obstruction in the fetus. URINARY SYSTEM ANATOMY The urinary system is responsible for the maintenance and the composition of the properties of specific body fluids that are known to establish the internal environment. The kidney is a reddish brown, bean-shaped organ 12 centimeters long; it is enclosed in a tough, fibrous capsule. Filtering Blood, Removing Urine: How the Structures of the Urinary System Work. GROSS ANATOMY OF THE HUMAN URINARY SYSTEM. It is also a major homeostatic organ. The kidneys produce urine to eliminate waste. The infection ascends the urethra to the bladder, and sometimes to the kidneys, or both. 12 to L 3)C) External Anatomy. !! Glomerulus to glomerular (bowman's) capsule to proximal convoluted tubule, through loop of hence and distal convoluted tubule to the collecting duct (which leaves the cortex of the. Histologically, the ureter wall has three layers. The urinary bladder collects and stores the urine so that we don't urinate constantly. By the katalase reaction (with O2) you are able to distinghuish urine and byproducts and trace it. The urine flows out of the nephron tubule into a collecting duct. Include the relevant tissue layers in each excretory system organ that allows urine to move through the system and be stored. On leaving the urinary bladder, urine passes through the urethra, which conducts the urine to the exterior. Order the following kidney structures to show the path of urine formation and its departure from the body: renal pelvis, glomerulus, ureter, renal artery, bladder, renal tubules (Loop of Henle and collecting ducts), calyx, urethra, Bowman's capsule. The urine production process does not differ whether the person is a male or a female. 2) Ureters transport urine from kidneys to urinary bladder. Many urinary problems can be solved by drinking enough water. Ureters (2) – Transport urine from kidneys to bladder. The ureters are long, thin tubes made of smooth muscle. Renal System esquemas. The uterus or womb is the major female reproductive organ, which supports and nourishes the developing baby. The urinary system rids the body of waste materials, regulates fluid volume, maintains electrolyte concentrations in body fluids, controls blood pH, secretes erythropoietin, and renin. Parasympathetic preganglionic neurons innervating the lower urinary tract are located in the lateral part of the sacral intermediate gray matter in a region termed the sacral parasympathetic nucleus. Urinary System. Stores up to about 1 pint (500 ml) of urine. NAME _____ LAB TIME/DATE _____ REVIEW SHEET exercise40 Anatomy of the Urinary System Review Sheet 40 305 Gross Anatomy of the Human Urinary System 1. Anticholinergics (eg. Study 82 Ch 17- Urinary System flashcards pyramid to collect urine that continually drains through the pyramids? and the pathway of blood through the renal system. Define the term retroperitoneal. It exits through the cloaca. ending point: the water molecule is excreted from the body. Histologically, the ureter wall has three layers. The urine then passes through the ureters, which are tubes connecting the kidneys and bladder. · Urinary Bladder- Smooth, collapsible muscular sac that store urine temporarily. The bladder is emptied through the urethra and urine is removed from the body. The urinary tract includes paired ureters that drain urine from the kidneys into the urinary bladder where it is temporarily stored until it is voided through the urethra to the exterior. The urine travels from the kidneys to the urinary bladder via the ureters. so lets study about urinary system. Excretion. The system works with the lungs, kidneys, and the. Male urethras are much longer and function as both a pathway for urine and semen, so it is considered part of the reproductive system and urinary system in males. Urine is a waste byproduct formed from excess water and metabolic waste molecules during the process of renal system filtration. Urinary System Functions: 1. As it fills, the rugae distend and a constant pressure in the bladder (intra-vesicular pressure) is maintained. It also helps regulate your blood volume and pressure, and controls the level of chemicals and salts (electrolytes) in your body's cells and blood. If in any case that there is an infection of the kidneys or even the bladder or if there is an inflammation because of the presence of the stones, immune disorders or growths that are found anywhere along the genitourinary system, then the blood is able to get into the urine. Start studying The urinary system; pathway to filtration (urine). The ureters, urinary bladder, and urethra together form the urinary tract, which acts as a plumbing system to drain urine from the kidneys, store it, and then release it during urination. •Glomerular filtration rate (GFR) •Autoregulation. Identify the sphincters that are located along the pathway from the ureters to the external urethral orifice. Human Anatomy & Physiology: Urinary System; Ziser Lecture Notes, 2010. or stop the flow of urine. Can you trace the path of urine? The Kidneys retroperitoneal connective tissue coverings Hilus Outer Cortex, inner Medulla. The kidneys produce urine to eliminate waste. Concentrated urine is a deeper yellow (amber) then is dilute urine. Waste is filtered from the blood and collected as urine in each kidney. The formation of urine begins within the functional unit of the kidney, the nephrons. Organs of the Urinary System 3. Physiology of the Nephron – Video Tutorial. i) urine is EXCRETED from the bladder through the urethra. Male Urinary System. It also helps regulate your blood volume and pressure, and controls the level of chemicals and salts (electrolytes) in your body's cells and blood. Kidney - Two bean shaped organs which filters the waste from the blood and produces urine. Type 2 diabetes mellitus (T2. From urinary bladder during micturition the urine is expelled out through urethra. Functions of the Urinary System • Expected Learning Outcomes -Name and locate the organs of the urinary system. The urethra is a tube that carries urine from the urinary bladder to the outside of the body. Urinary Bladder: Holds the urine until it is either full or excreted. As you can see, the male urinary system is analogous to the female with a few differences. 1) Renal hilus - indentation located on the medial aspect of the kidney. The primary structures of the urinary system include the kidneys, ureters, bladder, and urethra. URINARY SYSTEM EXAM 5 - Anatomy & Physiology 1086 with Scialli at Hillsborough Community College - StudyBlue Flashcards. trace a water molecule as it moves through the urinary system and is excreted from the body. The ureters are funnel shaped and joins with the urinary bladder. The ureters are long, thin tubes made of smooth muscle. These organ systems are vital to homeostasis through maintaining fluid balance, acid-base balance and blood pressure. Contractions of the smooth muscle push urine down through the ureters and into the bladder. As you can see, the male urinary system is analogous to the female with a few differences. 23-2 The Urinary System • Functions of urinary system • Anatomy of kidney • Urine formation - glomerular filtration - tubular reabsorption - tubular secretion • Urine and renal function tests • Urine storage and elimination 3. •Glomerular filtration rate (GFR) •Autoregulation. Complete the following statements: The kidney is referred to as an excretory organ because it excretes 1 wastes. As bladder fills, tension on the walls stimulates the internal urethral sphincter to relax and you feel like going. Urea, together with water and other waste substances, forms the urine as it passes through the nephrons and down the renal tubules of the kidney. Most waste products are removed from the body by the urinary system. Blood enters into the kidney via the renal artery, which then splits up to form the interlobar arteries. Urea passes freely through the glomerulus into the tubular fluid and, because it is not reabsorbed, is passed into the urine. Urine leaves the bladder through the urethra, then passes through the opening called the urinary meatus. Functional Anatomy of the Kidney and Renal Mechanisms. Urinary System Questions and Answers. The BioFlo Urinary Management System is revolutionary in its design and advancement of the state of urinary catheterization. Type 2 diabetes mellitus (T2. After a single intravenous injection of radiolabeled trivalent inorganic As (III) in human volunteers, most of the arsenic was cleared through urinary excretion within 2 days, although a small amount of arsenic was found in the urine up to 2 weeks later [ATSDR 2007]. SUMMARY: What The Urinary System Does • Filters blood of potentially harmful substances • Produces urine through the processes of filtration and re-absorption • Excretes waste (urine). ending point: the water molecule is excreted from the body. ericsphotography / Getty Images. The kidneys make urine by filtering wastes and extra water from. write a description to trace a path that includes as many of the following components of the urinary system and terms as you can. Infections of the kidneys are considered separately in acute pyelonephritis. Kidney stones can form when mineral and acid salts in the urine crystallize and stick together. Urine is a waste byproduct formed from excess water and metabolic waste molecules during the process of renal system filtration. The nephron, an evolutionary modification of the nephridium, is the kidney's functional unit. Basically, the urinary system’s main purpose is to maintain the body’s “homeostasis”. The infection ascends the urethra to the bladder, and sometimes to the kidneys, or both. Obstructive Uropathy in Small Animals. Volume of blood filtered. The urinary system consists of the kidneys, ureters, urinary bladder (usually called "the bladder") and urethra. It gets rid of the waste products that are created when food is transformed into energy. Normal filtrate contains a large amount of protein. Urine flow pathway. Q) Urine is formed by numerous nephronspresent inside the paired kidneys and it is passed through the ureters, to the urinary bladder. MALFUNCTIONS OF THE EXCRETORY SYSTEM a nive review of the human urinary system. Reference. ) Urinary incontinence is involuntary loss of urine. As such, urinary dysfunction is a common feature of neurologic conditions. Urinary system diseases occur when there are problems with the functioning of the kidneys, which reflects in the color, odor, and concentration of urine. The primary structures of the urinary system include the kidneys, ureters, bladder, and urethra. Urinary System Incontinence involuntary loss of urine may lose a few drops of urine while running or coughing Others may feel a strong, sudden urge to urinate just before losing a large amount of urine Pregnancy and childbirth, menopause, and the structure of the female urinary tract account for more women than men having this Both women and men can become incontinent from neurologic injury. Once it reaches a certain level of urine stretch receptors send signals to the brain to cause a conscious desire to urinate. The urinary system's function is to filter blood and create urine as a waste by-product. They have a filter function and thus protect us against all infections and inflammations. It gets rid of the waste products that are created when food is transformed into energy. In males the urethra also functions as a reproductive tract organ. The urine should flow from the kidney, through the ureter, to the bladder, and out of the fetus through the urethra to the amniotic fluid. On leaving the urinary bladder, urine passes through the urethra, which conducts the urine to the exterior. 2) Ureters transport urine from kidneys to urinary bladder. Picture source: Gezondheidsnieuws. Start studying Pathway for Urine Drainage. They work in concert with the urinary system to regulate the release of urine. (a) The urinary system, (b) the kidney, (c) cortical nephron, and (d) juxtamedullary nephron of the kidneys. However, hydrogen secreted in this process is immediately resorbed and thus does not contribute to net hydrogen secretion by the kidney. The stretching of the bladder activates stretch receptors, leading to reflex contractions. Moreover, the expression of genes involved in salvage pathways of nucleotide biosynthesis were significantly upregulated when UPEC are cultured in human urine and. The bladder is storage for urine. Although incontinence is more common among older people,. two kidneys (retroperitoneal) small chamber the urine enters after leaving the collecting duct: Pathway of Blood through the Kidney. 17 Urinary System (Kidney Labeling) and show off your skills. URINARY SYSTEM EXAM 5 - Anatomy & Physiology 1086 with Scialli at Hillsborough Community College - StudyBlue Flashcards. Urinary System: Physiology & Urine Formation. 25 - Urinary System. (See also Control of Urination. Urine is formed in the kidneys, travels through the ureter, into the bladder, through the urethra and out into the environment Term On average, how much urine collects in the bladder when the urge to urinate appears?. Describe the process of urine formation Trace the pathway of reabsorption or secre- The Urinary System: Filtration and Fluid Balance which pass through the. 4 : Pathway of Urine Flow Through the Kidneys. The ureters take urine produced by the kidneys to the bladder. Ultrasonic waves are passed through the body until they strike the dense stones. ending point: the water molecule is excreted from the body. Nephrons ( collecting ducts ( papillary ducts ( minor calyces ( major calyces ( renal pelvis ( ureters ( urinary bladder ( urethra. Urine is produced in the kidneys. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The urinary system rids the body of waste materials, regulates fluid volume, maintains electrolyte concentrations in body fluids, controls blood pH, secretes erythropoietin, and renin. It also helps regulate your blood volume and pressure, and controls the level of chemicals and salts (electrolytes) in your body's cells and blood. The kidneys control the fluids of the body. The urinary system consists of: Two kidneys, organs that remove dissolved waste and other substances. Tubular Secretion- substances move from blood into the nephron and enter filtrate, larger substances Occurs in PCT, LOH, DCT Wastes electrolytes water drugs H ions, penicillin, ammonia, K Happens faster than filtration CONTROL OF URINE FORMATION At the same time as tubular absorption takes place in the PCT, tubular excretion is also occurring. Male urethras are much longer and function as both a pathway for urine and semen, so it is considered part of the reproductive system and urinary system in males. Of course, beyond those 5 steps there are elaborate layers of control. is mediated by afferent inputs traveling through the pudendal nerve to the sacral spinal cord [Shefchyk 1998] and brain [Barrington 1941]. Obstruction of the urethra by uroliths in dogs and by matrix-crystalline plugs in young male cats. Urine is formed in the kidneys, travels through the ureter, into the bladder, through the urethra and out into the environment Term On average, how much urine collects in the bladder when the urge to urinate appears?. the urinary bladder is an expandable, muscular sac that can store as much as 1 liter of urine Excretion of urine. Sunday, July 17, 2011. OBJECTIVES : State the function of the Urinary system//Identify and explain the functions of the organs of the urinary system//Identify the main structures within the kidney and describe their functions//Identify the structures within a nephron and how it filters blood to form urine//Describe the pathway of urine from formation to being removed from. The urethra is a tube that carries urine from the urinary bladder to the outside of the body. The urinary system or tract includes the kidneys, the ureters (tubes that connect the kidneys to the bladder), the bladder, and the urethra (the tube through which urine exits the body). The filtration of blood takes place in the kidneys through the nephrons. trace the anatomical pathway of a molecule of creatinine (metabolic waste) from the glomerular capsule to the urethra. Kidneys filter and regulate the blood. Tracing the path of a juicy hamburger through digestion until liquid waste is excreted through the urinary system will be easier. Urine is formed by water, salt, and urea, a waste product of broken down proteins. As the bladder fills, it expands and compresses the lower ends of the ureters to prevent back flow of urine. Blood clots and foul-smelling discharge are often signs of infection. Your kidneys, located toward the back in your upper abdomen, produce urine by filtering waste and fluid from your blood. The urethra is a tube that carries urine from the urinary bladder to the outside of the body. Where is the excretory system found? The excretory system is at the en of the large intestine. In fact the minimum achievable urine pH is roughly 4. URINARY SYSTEM Primary functions Excretion of metabolic wastes Regulation of water and ion balances Regulation of blood pressure Vitamin D activation Regulation of rbc’s (erythropoietin) Gluconeogenesis Major organs & structures Kidneys Ureters Urinary bladder Urethra See Fig. The kidneys help regulate blood volume. the holes at the tip of the papillae through which urine drains What structures are included in the lower urinary tract renal pelvis, calyces, ureters, urinary bladder, urethra. by interference with the normal nerve pathways associated with urination. What is the Urinary System? • The Urinary System is a group of organs in the body concerned with filtering out excess fluid and other substances from the bloodstream. Urinary system. composition of blood is determined more by kidney function than by diet. Urine has salts, toxins, and water that need to be filtered out of the blood. Urine testing can reveal diseases such as diabetes mellitus, urinary tract infections, kidney stones, and renal disease. URINARY SYSTEM • Let's take a look at the anatomy first! KIDNEYS: are complex reprocessing centers where blood is filtered through and waste products are removed. Urinary Bladder: Holds the urine until it is either full or excreted. The urinary tract system is made up of the kidneys, ureters, bladder, sphincter muscles and the urethra.