Question

Conn's disease is caused by hypersecretion of

• A. Thyroid
• B. Adrenals
• C. Parathyroid
• D. Pituitary

Answer 1

Answer: (B)

Adrenals

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

B. 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.

C. Parathyroid gland is present in the form of four small pouches which are embedded in the posterior surface of lobes of thyroid gland. This gland secretes parathormone which increases calcium reabsorption from the bones and causes mobilisation of calcium in the blood.

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.

Conn's disease is caused due to hypersecretion of aldosterone which is a mineralocorticoid secreted from adrenal cortex.

So, the correct answer is 'Adrenals'.