Question

Somatostatin (GHIH) is secreted by

• A. Pituitary
• B. Thyroid
• C. Pineal
• D. Hypothalamus

Answer 1

The correct option is D Hypothalamus

A. Pituitary gland is the master gland that regulates the activity of other endocrine glands and secretes many hormones like growth hormone, follicle stimulating hormone, thyroid stimulating hormone etc.

B. Thyroid gland is situated between the trachea and larynx in the neck and secretes thyroxine hormone which increases oxygen consumption by metabolically active tissues.

C. Pineal gland is a small, rounded and reddish brown gland present at the dorsal side of forebrain. This gland secretes melatonin and serotonin hormones.

D. Hypothalamus is present in the forebrain. This gland secretes hormones that regulate the synthesis and secretion of hormones of pituitary gland.

Somatostatin, also known as GHIH (Growth hormone inhibiting hormone) is secreted from hypothalamus and inhibits the release of growth hormone from pituitary gland.

So, the correct answer is 'Hypothalamus'.