Question

Gigantism and Acromegaly are due to

• A. Hyposecretion of Thyroxine
• B. Hyposecretion of Growth hormones
• C. Hypersecretion of Thyroxine
• D. Hypersecretion of Growth hormones

Answer 1

The correct option is D

Hypersecretion of Growth hormones

The correct option is D

Explanation of the correct option:

1. Growth hormones are secreted by the anterior lobe of the pituitary gland under the influence of GH- releasing hormone.
2. Hypersecretion of growth hormones causes excessive growth.
3. In children, overproduction causes gigantism while in adults it causes acromegaly.
4. Growth hormone stimulates the growth of bones muscles and many internal organs and overproduction can lead to the abnormal growth of all such tissue.

Explanation of the incorrect option:

Option A: Hypo secretion of thyroxine causes diseases of retarded mental along with physical development known as Cretinism.

Option B: Growth hormone deficiency or hyposecretion can lead to a condition known as Dwarfism or pituitary dwarfism.

Option C: The hypersecretion of thyroxine or hyperthyroidism can accelerate your body's metabolism, causing unintentional weight loss and irregular heartbeat.

Final answer: Gigantism and Acromegaly are due to hypersecretion of Growth hormone.