In human adult females, oxytocin

1. is secreted by anterior pitutiary

2. Stimulates growth of mammary glands

3. Stimulates pitutary to secrete vasopressin 

4. causes strong uterine contractions during parturition 

The blood calcium level is lowered by the deficiency of ?

1. parathormone

2. thyroxine

3. calcitonin

4. Both 1. and 2.

Feeling the tremor of an earthquake a scared resident of seventh floor of a multistoryed

building starts climbing down the stairs rapidly. Which hormone initiated this action?

1. Thyroxine

2. Adrenaline

3. Glucagon 

4. Gastrin

A steroid hormone which regulates glucose metabolism is:

1. cortisol

2. corticosterone

3. 11- deoxycorticosterone

4. cortisone

Which hormone causes dilation of blood vessels, increased oxygen consumption and gluco-genesis ?

1. ACTH
2. Insulin
3. Adrenalin
4. Glucagon

Sella Turcica is found 
1. in bones
2. in joints
3. nearby pituitary
4. nearby thyroid

Which of the following statements regarding glucagon is false?
1. It is secreted by $\mathrm{\alpha }$-cells of Langerhans.
2. It acts antagonistically to insulin. 
3. It decreases blood sugar level.
4. The gland responsible for its secretion is heterocrine gland

What is the effect of GnRH produced by hypothalamus?
1. Stimulates the synthesis and secretion of androgens
2. Stimulates secretion of milk in mammary glands
3. Stimulates foetal ejection reflex
4. Stimulates synthesis of carbohydrates from non-carbohydrates in liver

Catecholamine in a normal person induces

1. intense salivation
2. alertness
3. decrease in heart beat
4. excessive urination

Select the correct statement about hormones and their actions.

1. Parathyroid hormone increases ${\mathrm{K}}^{+}$ absorption of the body.

2. Insulin and glucagon helps to maintain blood sugar levels.

3. Old aged people have weak immunity due to increased activity of thymus.

4. Osteoporosis in women occurs due to increased levels of oestrogens.