Question

Injury to the adrenal cortex is not likely to affect the secretion of which one of the following?

• A. Both androstenedione and dehydroepiandrosterone
• B. Aldosterone
• C. Cortisol
• D. Adrenaline

Answer 1

The correct option is D

Adrenaline

The correct option is D.

Explanation for the correct option:

1. Adrenal gland consists of two parts, the adrenal medulla, and the adrenal cortex. The adrenal medulla is surrounded by the adrenal cortex.
2. Adrenaline is secreted by the adrenal medulla, hence the injury in the cortex is unlikely to affect its secretion.

Explanation for the incorrect options:

Option A:

1. Hormones like androstenedione and dehydroepiandrosterone are secreted from the adrenal cortex.
2. Androstenedione is a steroid hormone used to improve athletic performance, build muscle, increase energy, keep red blood cells healthy, and increase sexual desire and performance
3. Dehydroepiandrosterone (DHEA) is a hormone that helps produce other hormones, including testosterone and estrogen.
4. So, any injury in the cortex will affect their secretion.

Option B:

1. The hormone aldosterone is also secreted from the adrenal cortex
2. Aldosterone is a corticosteroid hormone that maintains water and salt balance in the body.
3. So, its secretion can be affected by any injury to the cortex.

Option C:

1. Cortisol hormone also gets secreted from the adrenal cortex.
2. It mainly helps regulate your body's response to stress.
3. So, injury to the cortex can affect its secretion.

Final Answer: The secretion of adrenaline is not going to be affected by an injury to the adrenal cortex.