Question

Brain sand is associated with

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

Answer 1

The correct option is B Pineal gland

A. 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.

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. 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.

Brain sand, known as Corpora arenacea, are calcified structures found in pineal gland.

So, the correct answer is 'Pineal gland'.