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Q. Abnormal secretion of thyroxine causes

UP CPMTUP CPMT 2003

Solution:

Thyroxine is produced by thyroid gland under the effect of TSH from anterior pituitary. Its deficiency/hyposecretion causes cretinism in children and myxoedema in adult. Its hypersecretion causes thyrotoxicosis. Goitre is the term used for enlarged thyroid gland irrespective of if s functional status i.e. the gland may be hyperthyroid, hypothyroid or euthyroid (normal)