Pituitary gland does not control the secretory activity of :

Options

A. Thyroid
B. Adrenal cortex
C. Adrenal medulla
D. Testes

Answer

To solve the question regarding which gland's secretory activity is not controlled by the pituitary gland, we will analyze the functions of the pituitary gland in relation to the glands listed: thyroid, adrenal cortex, adrenal medulla, and testis.

### Step-by-Step Solution:

1. **Understanding the Pituitary Gland**: The pituitary gland is often referred to as the "master gland" because it regulates many bodily functions by releasing hormones that control other glands.

2. **Thyroid Gland**: The pituitary gland releases Thyroid Stimulating Hormone (TSH), which stimulates the thyroid gland to produce hormones like T3 and T4. Therefore, the pituitary gland does control the secretory activity of the thyroid gland.

3. **Adrenal Cortex**: The pituitary gland secretes Adrenocorticotropic Hormone (ACTH), which stimulates the adrenal cortex to produce hormones such as cortisol and aldosterone. Thus, the pituitary gland also controls the secretory activity of the adrenal cortex.

4. **Adrenal Medulla**: The adrenal medulla produces hormones like adrenaline and noradrenaline, which are involved in the body's fight-or-flight response. The secretion of these hormones is primarily controlled by the autonomic nervous system rather than the pituitary gland. Therefore, the pituitary gland does not control the secretory activity of the adrenal medulla.

5. **Testis**: The pituitary gland releases Luteinizing Hormone (LH) and Follicle Stimulating Hormone (FSH), which regulate the function of the testis, including testosterone production. Hence, the pituitary gland does control the secretory activity of the testis.

6. **Conclusion**: Based on the analysis, the gland whose secretory activity is not controlled by the pituitary gland is the **adrenal medulla**.

### Final Answer:
The pituitary gland does not control the secretory activity of the **adrenal medulla**.

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