4 Calculate the net fileration pressure if the pressure 29 mmllg, and the capsul

Question

4 Calculate the net fileration pressure if the pressure 29 mmllg, and the capsular hydrostatic pressure 8 mmHg Does this differ Glon 5 The presence of blood and protein in the urine can indicare inflammation of the glomerulus. Why would inflammation result in these during an inflammatory res passing into the filtrate and the urine? (Hint What 6 Poorly controlled diabetes mellitus, which results in high blood glucose, often causes glucose to be Hound in the urine. Explain this finding 7 In Exercise 25-3 (p. 621), you traced a molecule of urea from the renal artery out of the body How would the steps of this tracing differ if the urea were recycled? Write out the steps of this tive pathway 25

Explanation / Answer

Answer:

4.

GHP = 56 mmHg

COP = 29 mmHg

CHP = 8 mmHg

so NFP( net filtration pressure) = 56 - (29+8) = 19 mmHg

this value exceeds normal NFP (i.s 10 mmHg). the value is higher due to an elevated GHP and slightly decreased COP and CHP. As a result, this will increase the amount of filtered at the glomerulus and will increase the GFR.

5.

During an inflammatory response, the permeability of capillary is increased which would allow for larger molecules and blood cells to squeeze through into the filtrate. there is no other mechanism for reabsorbing these substances and they, therefore, appear in the urine.

6.

Excess glucose in the filtrate is due to hyperglycemia. When the amount of glucose in the filtrate exceeds the transport maximum of the proximal tubule’s transporters, which cannot all be reabsorbed. This causes the glucose to be lost through urine.

7.

if urea is recycled then the steps will be

renal artery -> afferent arteriole-> glomerulus -> Bowmen's capsule -> PCT -> efferent arteriole -> renal vein

the normal pathway of urea is

From proximal convoluted tubule to collecting duct, and renal pelvis. Leaves kidney and enters ureter which leads to urinary bladder where urine is stored, urethra, outside.

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