Assertion : Osteoporosis is related to parathyroid glands.
Reason : Osteoporosis is the result of softening and bending of bones.

Give the reason of osteoporosis .

If parathyroid gland of man are removed, the specific result will be

If parathyroid gland of man are removed, the specific result will be

Assertion : Osteoporosis is characterized by increase in density of bones. Reason : There is increased activity of the osteoblasts.

Assertion :- Vasopressin is a neurohormone Reason:- Vasopressin is synthesized by pars nervosa of pituitary gland

Assertion : Birds have no mammary gland. Reason : Pigeonds secrets 'pigeon's millk'

Assertion (A): Osteoporosis occurs due to deficiency of vitamin D and hormonal imbalance Reason (R): Osteoporosis causes rickets in children and osteomalacia in adult females.

Assertion : Collip's hormone is secreted by the chief cells of parathyroid gland. Reason : It regulates calcium and phosphate level between blood and tissues.

Assertion (A): Pituitary gland is referred as "Master gland. Reason (R): It controls the functioning of other endocrine glands.