Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 6

The function of the peritubular capillaries is:

A. Reabsorption

B. Filtration

C. Secretion

D. Both A and C

Step 1 of 2

Peritubular capillaries:

In kidney, millions of nephrons are present. Along with the nephron peritubular capillaries are present as a small blood vessel.

• The peritubular capillaries are helpful in reabsorption of essential substances (glucose, amino acid) from the urine and secretion of hydrogen ions to the tubule to regulate the acid-base balance of the body.

• The peritubular capillaries are found in proximal convoluted tubule, distal convoluted tubule, loop of henle where reabsorption and secretion process are done.

Therefore, “reabsorption” and “secretion” are the functions of peritubular capillaries. Hence, the correct answer is option.