Question

Disease/s caused by hyper or hyposecretion of thyroxine is/are
A. Cretinism
B. Acromegaly
C. Goitre
D. Both A and C

Answer 1

When the iodine level in the human body is low, the thyroid gland becomes hyperactive as well as they enlarged to compensate for the deficiency of thyroid hormone in our body. The enlarged thyroid gland is visible due to swelling in the throat which is known as goitre disease.

Complete answer:
Option A: Cretinism –
The term Cretinism is a disease of retarded mental along with physical development caused because of hypo secretion of thyroxine. It is stated as a condition characterized by physical deformity of humans as well as learning difficulties that are due to congenital thyroid deficiency in our body.

Option B: Acromegaly –
Acromegaly is a hormonal disease or disorder that is caused due to over secretion of growth hormone in adults. This is a disorder in adults caused in the pituitary gland and produces too much growth hormone in our body.

Option C: Goitre –
The name Goitre is the enlargement of thyroid gland occurs because of the deficiency of iodine in our body. Iodine is essential for the synthesis of thyroid hormone. The most visible Symptoms of Goitre diseases that might occur include swelling along with coughing. Other symptoms which may occur are throat tightness or trouble in breathing.

Option D: Both A and C –
This option is the correct answer to the question as both Cretinism as well as Goitre are diseases caused by hyper or hypo-secretion of thyroxine.

Hence, the correct answer is option (D).

Note: Hyperthyroidism is the result of excess thyroid hormone production, it is caused by an overactive metabolism along with increased speed of all the body's processes. Symptoms comprise surprising weight loss, rapid or irregular heartbeat, sweating as well as petulance, although the aged often undergo no symptoms.