The blood calcium level is lowered by the deficiency of ?

1. parathormone

2. thyroxine

3. calcitonin

4. Both 1. and 2.

Which one of the following pairs of organs includes only the endocrine glands?

1. Parathyroid and adrenal

2. Pancreas and parathyroid

3. Thymus and testes

4. Adrenal and ovary

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 person is having problems with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?
1. Parathyroid
2. Parotid
3. Pancreas
4. Thyroid

Compared to a bull, a bullock is docile because of:
1. higher levels of thyroxin
2. higher levels of cortisone
3. lower levels of blood testosterone
4. lower levels of adrenalin/noradrenalin in its blood

Sertoli cells are regulated by the pituitary hormone known as:
1. FSH
2. GH
3. Prolactin 
4. LH

A steroid hormone which regulates glucose metabolism is:

1. cortisol

2. corticosterone

3. 11- deoxycorticosterone

4. cortisone

Which one of the following is not a second messenger in hormone action ?

1. cGMP                 

2. Calcium

3. Sodium               

4. cAMP

Which of the following is an accumulation and release centre of neurohormones?
1. Posterior pituitary lobe
2. Intermediate lobe of the pituitary
3. Hypothalamus 
4. Anterior pituitary lobe

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

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