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15
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What part of the nephron is not permeable to water?
The ascending loop of Henle
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15
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What is filtrate in the urinary systerm>
Blood plasma minus the large proteins. The fluid that is filtered by the nephrons
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banana
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seesaw
Swap points!
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fairy
Take points!
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25
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lifesaver
Give 20 points!
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15
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What is the renal blood flow rate?
The rate at which blood flows through the kidneys (1 liter/min)
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25
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Label f, g, h, i, j,
f. thick segment ascending loop of Henle g. proximal tubule h. distal tubule i. cortex j. medulla
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20
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What are the 4 steps of Urine formation?
1. filtration 2. reabsorption 3. secretion 4. reabsorption of water
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trap
No points!
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gold
Win 50 points!
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shark
Other team loses 5 points!
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banana
Go to last place!
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15
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What might cause urine to become more alkaline, and why?
vomiting, because you are losing acid, causing the kidney to secrete a lot of H+ ions back into the blood
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15
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What is the buffer system in the blood?
Proteins - amino acids, amino part is the base, acid part is the.....acid
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15
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Why are there two urethral sphincter muscles?
The internal sphincter is automatically opened (parasympathetic) when the bladder fills up. the external sphincter is voluntary.
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25
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What can cause the GFR to go down? Is this always a bad thing?
Blood loss or dehydration. short term it can help prevent further blood loss or dehydration.
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15
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What are fenestrae?
large pores in the glomerular capillaries
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baam
Lose 20 points!
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magnet
Take 25 points!
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fairy
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thief
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15
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Why does the kidney tightly control the reabsorption of water?
The water balance in the body, for homeostasis is has a narrow range
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20
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Why are the kidneys outside the peritoneal area and packed in fat?
We don't want them to move!
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20
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What structure in the urinary system contains stratified transitional epithelium and why
The bladder, because it needs to be able to stretch a lot
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