Nor epinephrine is secreted from

Options

A. Zona glomerulosa
B. Zona fasciculata
C. Zona reticularis
D. Suprarenal medulla

Answer

To solve the question "Norepinephrine is secreted from," let's analyze the options provided:

1. **Zona Glomerulosa**: This is the outermost layer of the adrenal cortex, and it primarily secretes mineralocorticoids, such as aldosterone. Therefore, this option is incorrect.

2. **Zona Fasciculata**: This layer of the adrenal cortex primarily secretes glucocorticoids, such as cortisol. It does not secrete norepinephrine, making this option incorrect as well.

3. **Zona Reticularis**: This layer secretes sex hormones (androgens) and small amounts of glucocorticoids. It does not produce norepinephrine, so this option is also incorrect.

4. **Suprarenal Medulla**: The suprarenal medulla (or adrenal medulla) is responsible for secreting catecholamines, which include epinephrine (adrenaline) and norepinephrine (noradrenaline). This is the correct answer, as norepinephrine is secreted from the suprarenal medulla.

Thus, the correct answer is **Suprarenal Medulla**.

### Step-by-Step Solution:
1. Identify the function of each option provided in the question.
2. Analyze the secretion products of each layer of the adrenal cortex and the adrenal medulla.
3. Determine which option correctly corresponds to the secretion of norepinephrine.
4. Conclude that the correct answer is the suprarenal medulla.