Question

The sketch below shows a certain condition in an individual:

(i) Name the condition.
(ii) What is the underlying cause of this condition?
(iii) Name two other conditions that could have resulted due to a similar cause.
(iv) Which hormone is required for iodine synthesis?
(v) Where is the thyroid gland located?
(vi) The hormone secreted by the thyroid gland is controlled from which hormone?

Answer 1

(i) Goiter

(ii) The thyroid gland enlarges due to deficiency due to deficiency of iodine in the diet.
(iii)
1. Cretinism in children
2. Myxoedema

(iv) Thyroxin

(v) It is located in a mid-ventral position in the posterior part of the pharynx.

(vi) Thyroid-stimulating hormone/TSH.