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25 Cards in this Set
- Front
- Back
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What do all systems produce?
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Wast or urea
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What do the kidneys do?
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1. Regulate blood volume
2. Regulate blood pH 3. Regulate ion concentration in blood 4. Regulate Erythrocyte production |
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Organs of the urinary tract
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1. ureter
2. urinary bladder 3. urethra |
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Describe location of kidneys?
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Retroperitoneal, located along the posterior abdominal wall. Only anterior surface is covered with peritoneum
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Are the kidneys the same?
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No, the right is 2 cm lower because of the liver on the right side
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What kind of things protect kidneys
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1. Fibrous capsule
2. Perinephric fat 3. Renal fascia 4. paranephric fat |
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Cushions the kidney?
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Perinephric fat
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CT that anchors the kidney to the abdominal wall and peritoneum
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Renal fascia
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Between the renal fascia and the peritoneum
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Paranephric fat
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Like a funnel that collects urine? forms the opening of the ureter?
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Renal pelvis
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Where urine formation occurs, which relies on close relationship between blood vessels and tubules of the nephrons
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Nephron
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How many nephrons in the two kidneys?
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2.5 million
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Composed of a glomerular capillary and a glomerular capsule
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Renal Corpuscle
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Where do nephrons drain urine?
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Collecting ducts which drain into renal pelvis
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Do a blood trace from renal artery to renal vein
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Renal artery
segmental artery Interlobar arteries Arcuate arteries Interlobular arteries afferent arterioles glomerular capillar bed efferent arterioloes peritubular capilary interlobular veins arcuate veins interlobar veins Renal vein |
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Each of these extend from the renal pelvis of each kidney to the urinary bladder
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ureter
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How long is a ureter
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About 25 cm long
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Describe the anatomy of a ureter
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muscular walls propell urine toward the bladder as they compress (as bladder fills) to prevent reflux of urine back into the ureter
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Where is the location of the bladder? Males and females?
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Immediately posterior to the pubic symphysis. In females its anterior to vagina and and uterus. In males its anterior to the rectum
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This organ stores urine for untill urination or micturation
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Urinary bladder
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Where do the ureters enter the bladder?
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posterolateral wall of bladder
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What ligament supports the bladder by anchoring to the umbillicus (navel)
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Median umbilical ligament
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What forms the opening of the urethra?
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Inferior neck of the bladder
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How much urine does a bladder hold?
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liter to 600 mL
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What are the two types of sphincters in the urethra? Whats the difference
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Internal and external. The internal is upper and involuntary. The external is lower and is voluntary
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