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Question

Which statement is correct about the thyroid gland ?

A
Thyroid hormones are essential for the early development and maturation of the central nervous system.
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B
T3 and T4 stimulate the secretion of TSH by the anterior pituitary
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C
People who have an over active thyroid gland have a low BMR
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D
Low plasma levels of thyroid hormones leads to thyrotoxicosis
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Solution

The correct option is A Thyroid hormones are essential for the early development and maturation of the central nervous system.
Thyroid hormones are essential for normal central nervous system development during late foetal and early postnatal life.
Hyposecretion of these hormones causes Cretinism in children and myxoedema in adults, where as hyper secretion causes Graves’s disease and Goitre.

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