Question

Melatonin and serotonin hormones are secreted by

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

Answer 1

The correct option is B Pineal

A. Thymus gland is associated with the development of immune system and present on the dorsal side of heart.

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

C. Thyroid gland is situated between the trachea and larynx in the neck and secretes thyroxine hormone.

D. Adrenal gland is present on upper side of kidneys and has two parts, adrenal cortex which secrete glucocorticoids, mineralocorticoids and sexocorticoids and adrenal medulla which secrete adrenaline and nor-adrenaline hormone.

So, the correct answer is 'Pineal'.