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

Options

A. Cortisol
B. Aldosterone
C. Both Androstenedione and Dehydroepiandrosterone
D. Adrenaline

Answer

To solve the question "Injury to adrenal cortex is not likely to affect the secretion of which one of the following?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Function of the Adrenal Cortex**:
- The adrenal cortex is responsible for producing several hormones, including cortisol, aldosterone, and androgens (such as androstenedione and dehydroepiandrosterone).

2. **Evaluate the Options**:
- **Cortisol**: This hormone is produced by the zona fasciculata of the adrenal cortex. An injury to the adrenal cortex would affect cortisol secretion.
- **Aldosterone**: This hormone is produced by the zona glomerulosa of the adrenal cortex. An injury to the adrenal cortex would also affect aldosterone secretion.
- **Androstenedione and Dehydroepiandrosterone**: Both of these weak androgens are produced by the adrenal cortex. Therefore, their secretion would be affected by an injury to the adrenal cortex.
- **Adrenaline**: This hormone is produced by the adrenal medulla, not the cortex. Therefore, an injury to the adrenal cortex would not affect adrenaline secretion.

3. **Conclusion**:
- Since adrenaline is produced by the adrenal medulla and not the adrenal cortex, injury to the adrenal cortex is not likely to affect the secretion of adrenaline. Thus, the correct answer is adrenaline.

### Final Answer:
**Adrenaline**