Question

The gonadotropic hormones are secreted by

• A. Interstitial cells of testes
• B. Anterior lobe of the pituitary
• C. Posterior part of the thyroid
• D. Adrenal cortex

Answer 1

The correct option is B

Anterior lobe of the pituitary

The correct option is B.

Explanation of the correct option:

1. Gonadotropic hormones are secreted by the anterior pituitary.
2. These hormones act on the gonads i.e. ovaries and testes.
3. Gonadotropin-releasing hormones which are secreted by the hypothalamus act on the pituitary gland and stimulate it to synthesize and secrete gonadotropins.
4. The two primary gonadotropins released are luteinizing hormone (LH) and follicle-stimulating hormone (FSH).

Explanation of the incorrect options:

Option A:

1. The interstitial cells of leydig are also known as Leydig cells.
2. They are found next to seminiferous tubules in the testicle.
3. They release testosterone in the presence of the luteinizing hormone (LH).

Option C:

1. Thyroid is a butterfly-shaped gland and is present at the base of the trachea.
2. It has two lobes on either side that are joined by an isthmus.
3. It releases two hormones:
4. Follicle cells release triiodothyronine and tetraiodothyronine.
5. Parafollicular cells release thyrocalcitonin.

Option D:

1. Adrenal cortex releases hormones known as corticoids.
2. They are either involved in carbohydrate metabolism known as glucocorticoid.
3. Or they regulate water and mineral balance known as a mineralocorticoid.
4. Small amounts of androgenic steroids are also produced by it.

Final answer: The gonadotropic hormones are secreted by anterior lobe of the pituitary.