The most accepted theory of ageing is :

• less RBC in blood

• thymus gland becomes non-functional

• brain cells die with ageing

• all of the above

The chemical nature of hormones secreted by $\alpha$ and $\beta$ cells of pancreas is

• glycolipid

• glycoprotein

• steroid

• polypeptide

The specific region of hypothalamus, responsible for physiological sweat secretion, is

• para-ventricular nucleus

• supra-optic nucleus

• median eminence

• pars distalis

Endemic goitre is a state of

• increased thyroid function

• normal thyroid function

• decreased thyroid function

• moderate thyroid function

Islets of Langerhans are found as

• anterior pituitary

• kidney cortex

• spleen

• endocrine pancreas

Which of the following is the function of adrenalin?

• Helps in gastric juice secretion

• Increases heart rate and blood pressure

• Increases blood calcium

• Helps in milk secretion

The hormone responsible for 'Fight and Flight' response is

• adrenalin

• thyroxin

• ADH

• oxytocin

ACTH is secreted from

• adrenal cortex

• pituitary

• adrenal medulla

• thyroid

219.

The cause of cretinism is

• hypothyroidism

• hypoparathyroidism

• hyperthyroidism

• hyperparathyroidism

Which of the following is a minerelocorticoid?

• Testosterone

• Progesterone

• Adrenalin

• Aldosterone