ANATOMY

GENERAL ANATOMY

URINARY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What hormones regulate the reabsorption of sodium and water in the distal convoluted tubule?
A
aldosterone and rennin
B
creatinine and renin
C
aquaporin and aldosterone
Explanation: 

Detailed explanation-1: -The renin-angiotensin-aldosterone system is primarily associated with blood pressure regulation by modulating blood volume, sodium reabsorption, potassium secretion, water reabsorption, and vascular tone.

Detailed explanation-2: -Answer and Explanation: Antidiuretic hormone (ADH) is a hormone that regulates water reabsorption or secretion in the distal convoluted tubule and collecting duct.

Detailed explanation-3: -ADH (antidiuretic hormone) is a hormone secreted by the posterior pituitary gland. It acts chiefly on nephrons and helps to increase the reabsorption of water from the kidney tubules. It also stimulates the reabsorption of electrolytes by the distal tubules, thereby decreasing the deficiency of water through urine.

Detailed explanation-4: -Aldosterone (salt-retaining hormone) regulates the sodium content of the body. It is secreted when the sodium level is low. It acts on the kidneys to cause more sodium to be returned to the blood and potassium to be excreted.

Detailed explanation-5: -Aldosterone increases sodium transport by binding to the MR, translocating to the nucleus, and increasing the transcription of sodium channels and transporters, thereby indirectly promoting water reabsorption in the renal distal tubule.

There is 1 question to complete.