Question

Name the gland which is located under corpus callosum.

• A. Adrenal gland
• B. Thyroid gland
• C. Pineal gland
• D. Thymus gland

Answer 1

Answer: (C)

Pineal gland

A. Adrenal gland is present on upper side of kidneys and has two parts, adrenal cortex which secrete glucocorticoids (Cortisol), mineralocorticoids (Aldosterone) and sexocorticoids (Androgen) and, adrenal medulla which secrete adrenaline and nor-adrenaline hormone.

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. It is located under corpus callosum (bridge between right and left sides of brain). This gland secretes melatonin and serotonin hormones.

D. Thymus gland is associated with the development of immune system and present on the dorsal side of heart. It secretes thymosin hormone which plays an important role in the differentiation of T-lymphocytes.

So, the correct answer is 'Pineal gland'.