Urinary System - JS - part 2

Question 1

What is the major function of the renal corpuscle?

Answer 1

Filters blood

Question 2

What is the major functions of the proximal convoluted tubules

Answer 2

Resorbs all glucose, amino acids, filtered proteins;

- at least 80% Na, Cl, H2O

Question 3

What is the major functions of Loop of Henle, descending thick limb.

Answer 3

• Same as proximal convoluted tubule
• Resorbs all glucose, amino acids, filtered proteins;
  
  • at least 80% Na, Cl, H2O

Question 4

What is the major functions of Loop of Henle, descending thin limb?

Answer 4

• Permeable to H2O whcih exits ultrafiltrate and enters interstitium; Na, Cl enter ultrafiltrate

Question 5

What is the major functions of Loop of Henle, ascending thin limb?

Answer 5

-Somewhat permeable to H2O which enters ultrafiltrate from interstitium; Na, Cl exit ultrafiltrate

Question 6

What is the major functions of Loop of Henle ascending thick limb

Answer 6

Impermeable to H2O; Cl actively transported out of tubule into interstitium; Na follows

Question 7

What is the major functions of JG apparatus macula densa?

Answer 7

Monitor levels of Na (or dec of fluid volume) in ultrafiltrate of distal tubule

Question 8

What is the major functions of JG cells in afferent arteriole?

Answer 8

Cells synthesize renin, release it into bloodstream

Question 9

What is the major functions of Distal convoluted tubule?

Answer 9

Cells respond to aldosterone by removing Na from ultrafiltrate

Question 10

What is the major functions of Collecting tubules?

Answer 10

In absence of ADH, tubule impermeable to H20; hypotonic urine excreted.