What is the role of aldosterone in renal physiology?

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Question: What is the role of aldosterone in renal physiology?

Options:

Correct Answer: Increases sodium reabsorption

Solution:

Aldosterone increases sodium reabsorption in the kidneys, which helps to regulate blood pressure and fluid balance.

What is the role of aldosterone in renal physiology?

What is the role of aldosterone in renal physiology?

Step 1: Understand that aldosterone is a hormone produced by the adrenal glands.
Step 2: Know that aldosterone acts on the kidneys, specifically on the nephrons, which are the functional units of the kidneys.
Step 3: Recognize that aldosterone promotes the reabsorption of sodium (Na+) from the urine back into the blood.
Step 4: Realize that when sodium is reabsorbed, water follows it due to osmosis, which helps to increase blood volume.
Step 5: Understand that increased blood volume can lead to higher blood pressure.
Step 6: Conclude that aldosterone plays a key role in regulating both blood pressure and fluid balance in the body.

No concepts available.