Question

Hypersecretion of growth hormone by pituitary results in
A. Dwarfism
B. Gigantism
C. Cretinism
D. Myxedema

Answer 1

Hint: growth hormone is responsible for the growth of the human like growth hormone helps in increasing height and weight. Growth hormone stimulates growth, cell reproduction, and cell regeneration in humans and other animals.

Complete answer:.
In this question we have asked what happens due to over secretion of the growth hormone. What does the growth hormone do? Growth hormone is a peptide hormone that stimulates growth, cell reproduction, and cell regeneration in humans and other animals. It is thus important in human development. It also helps to regulate body composition, body fluids, muscle and bone growth, sugar and fat metabolism, and possibly heart function.
So, our first option is dwarfism. Dwarfism Shortness in height that results from a genetic or medical condition which occurs due to lack of growth hormone not because of its over secretion. So, this option is wrong. The 2nd option is gigantism. Gigantism is excessive growth due to hormonal imbalance, mostly due to growth hormone oversecretion. Third option is cretinism. a condition characterized by physical deformity and learning difficulties that is caused by congenital thyroid deficiency. So, this option is also wrong as it does not have any deletion with growth hormone. Option D is myxedema. This is a condition that occurs when your body doesn't produce enough thyroid hormone and is characterized by lethargy, hair loss, weight gain, puffed skin, lowered body temperature and slowed pulse rate. So, this option is also wrong as myxedema occurs due to imbalance in thyroid hormone. Therefore, the answer is B. Gigantism.

The correct option is B, Gigantism.

Note: Gigantism is characterized by excessive growth, tall stature, mild to moderate obesity, macrocephaly, soft tissue hypertrophy, exaggerated growth of the hands and feet, with thick fingers and toes and coarse facial features as a secondary effect.