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13 Dec 2019

Along the loop of Henle, how does the movement of water and salt influence the volume and concentration of the filtrate.

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Nestor Rutherford
Nestor RutherfordLv2
17 Dec 2019
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Related questions

compare how membrane structure in the loop of Henle and collecting duct of mammalian kidney enable water to be recovered from filtrate in the process of osmoregulation.

1) A drop of urine would follow this path

a) renal pyramid/major calyx/minor calyx/renal pelvis/ureter

b) minor calyx/major calyx/renal pyramid/renal pelvis/ureter

c) renal pelvis/minor calyx/major calyx/renal pyramid/ureter

d) renal pyramid/minor calyx/major calyx/renal pelvis/ureter

2) The production of filtrate starts at

a) Loop of Henle

b) capsular space

c) distal convoluted tubule

d) proximal convoluted tubule

3) Major reabsorption of water happens by ____at the _____

a) contransport, distal convoluted tubules

b) Cl- shift, nephron loop

c) countercurrent, nephron loop

d) countercurrent, ureter

4) Angiotensin II causes production of ____to increase Na + reabsorption in the _________

a) renin; collecting duct

b) aldosterone; PCT

c) ADH; nephron loop

d) aldosterone; collecting duct

5) Most of the reabsorbed compounds from the filtrate end up in the

a) peritubular capillary

b) urine

c) nephron loop

d) DCT

6) Reabsorption of urea happens by

a) transcellular movement

b) by paracellular movement

c) by cotransport with glucose

d) by HCO3- movement

7) Transport Maximum, in urinary system terms, refers to

a) proteins performing ‘transport’ out of the filtrate at maximum rate

b) the reason why a diabetic produces large volumes of diluted urine

c) excess filtrate components being urinated out of the body

d) All choices are correct

8) Urine does not drop below pH 4.5 because

a) proteins that move H+ into filtrate stop working when too much H+ builds up in filtrate

b) proteins in urine neutralize acid

c) H+ are always buffered

d) the buffering system in urine does not run out

9) Hyperkalemia will

a) activate adrenal cells to secrete aldosterone

b) can stop the heart

c) No choices are correct

d) cause reduced excitability of neurons

e) All choices are correct

Starting with the glomerulus the regions of the urinary system that the filtrate must flow through are: (Please Note: not all structures need to be present, only that the sequence is correct)

a. glomerular capillaries – proximal convoluted tubule – ascending limb of the loop of Henle – minor calyx – urethra

b. Bowman’s space – proximal convoluted tubule – descending limb of t he loop of Henle, collecting duct - ureter

c. proximal convoluted tubule – major calyx – bladder - urethra

d. “a” and “b” are correct

e. All are correct

Explanation as well would be helpful

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