Biology
Observe the following picture, identify the defect and the cause of the defect.
- Simple goitre, under secretion of thyroxine.
- Ex-ophthalmic goitre, over secretion of thyroxine.
- Simple goitre, over secretion of thyroxine.
- Ex-ophthalmic goitre, under secretion of thyroxine.
Endocrine System
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Answer
Ex-ophthalmic goitre, over secretion of thyroxine.
Reason — Ex-ophthalmic goitre is caused by the over secretion of thyroxine hormone from the thyroid gland. It results in symptoms like protruding eyes, increased metabolism, swelling in the neck (goitre).
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