The adrenal cortex synthesis only

Options

A. Steroid hormones
B. Peptide hormones
C. Glycopetide hormones
D. Catecholamines.

Answer

### Step-by-Step Solution:

1. **Understanding the Adrenal Glands**: The adrenal glands are divided into two main parts: the adrenal cortex and the adrenal medulla. Each part has different functions and synthesizes different types of hormones.

2. **Identifying the Function of the Adrenal Cortex**: The adrenal cortex is responsible for synthesizing steroid hormones. This is a key point because it distinguishes the type of hormones produced by this part of the adrenal gland.

3. **Types of Hormones Synthesized**: The adrenal cortex produces several important steroid hormones, including:
- **Aldosterone**: Regulates sodium and potassium levels, and thus blood pressure.
- **Cortisol**: Involved in metabolism and the stress response.
- **Androgens**: Male sex hormones that are also produced in smaller amounts in females.

4. **Source of Steroid Hormones**: Steroid hormones are derived from cholesterol, which is a lipid. This characteristic makes them lipid-soluble, allowing them to pass through cell membranes easily.

5. **Exclusion of Other Hormones**: The other options provided (peptide hormones, glycopeptide hormones, and catecholamines) are not synthesized by the adrenal cortex:
- **Peptide and Glycopeptide Hormones**: These are typically produced by other endocrine glands, such as the pituitary gland.
- **Catecholamines**: These are synthesized by the adrenal medulla, not the cortex. Examples include adrenaline (epinephrine) and noradrenaline (norepinephrine).

6. **Conclusion**: Based on the information gathered, the adrenal cortex synthesizes only steroid hormones. Therefore, the correct answer to the question is "steroid hormones."

### Final Answer:
The adrenal cortex synthesizes only **steroid hormones**.

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