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Thyroid Gland

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Question

What are the abnormalities caused due to the decrease in secretion of thyroxine?

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Solution

Thyroxine is the hormone secreted by the thyroid gland. It is commonly known as T4. Thyroxine deficiencies can cause many problems, and the lack of the hormone thyroxine is known as hypothyroidism. The abnormalities caused due to the decrease in secretion of thyroxine are simple goitre, myxoedema and cretinism.

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Q. Fill in the blanks with the correct alternative from those given for each: [5 MARKS]
(i) Thyroid is located close to ___. (larynx/kidney)
(ii) Cretinism is caused due to ___ of thyroxine. (undersecretion / oversecretion)
(iii) Oversecretion of thyroxine causes ___ goitre. (simple / exophthalmic)
(iv) The condition showing swelling on face and hands and sluggishness due to hypothyroidism is called ___. (cretinism / myxoedema)
(v) The hormone concerned with facing dangers is ___. (thyroxine / cortisone / adrenaline)

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