hoose the hormone that increases sodium (Na) reabsorption in kidney:Select one:GlucagonAldosteroneAdrenalineAntidiuretic hormoneInsulin

Breakdown the Problem

1. The question asks to identify a hormone that increases sodium reabsorption in the kidneys.
2. It provides four options: Glucagon, Aldosterone, Adrenaline, Antidiuretic hormone, and Insulin.
3. We need to analyze each hormone's function regarding sodium reabsorption.

Relevant Concepts

1. Glucagon: Primarily involved in glucose metabolism.
2. Aldosterone: A mineralocorticoid hormone that promotes sodium reabsorption and potassium excretion in the kidneys.
3. Adrenaline (Epinephrine): Involved in the "fight or flight" response; its role is more related to heart rate and blood flow.
4. Antidiuretic hormone (ADH): Primarily influences water reabsorption, not directly sodium.
5. Insulin: Mainly regulates glucose metabolism and has a modest effect on potassium, but not directly sodium.

Analysis and Detail

1. Aldosterone increases sodium reabsorption in the nephron's distal convoluted tubule and collecting duct by stimulating sodium channels and Na+/K+ ATPase pumps.
2. The other hormones listed do not primarily regulate sodium levels in the kidneys.

Verify and Summarize

• The primary hormone interacting with sodium reabsorption in the kidney is Aldosterone.
• Glucagon, adrenaline, ADH, and insulin do not significantly influence sodium reabsorption.

Final Answer

Aldosterone is the hormone that increases sodium (Na) reabsorption in the kidney.