Question

The following abbreviations are used in the context of excretory functions, what do they stand for?

a. ANF

b. ADH

c. GFR

d. DCT

Answer 1

ANF:

• ANF is an Atrial Natriuretic factor, which helps to inhibit the renin-angiotensin mechanism.

ADH:

• ADH - Anti Diuretic hormone - which helps in water reabsorption by increasing the water permeability of the end part of DCT and the entire collecting duct.

GFR

• The first step in urine formation is the filtration of blood in the glomerulus and it is called glomerular filtration.
• The amount of filtrate formed by the kidneys per minute is called glomerular filtration rate (GFR). GFR of a healthy individual is approximately 125 ml/minute, i.e., 180 liters per day

DCT:

• DCT - Distal Convoluted tubule is a twisted structure present in the renal cortex of the kidney. It is connected with a loop of Henle and opens into the collecting duct. It helps in water and salt reabsorption