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Question

Thyrotropin releasing hormone (TRH) is secreted by

A
Hypothalamus
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B
Adenohypophysis
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C
Pars intermedia
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D
Neurohypophysis
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Solution

The correct option is C Hypothalamus
Thyrotropin releasing hormone (TRH) is secreted by hypothalamus. It stimulates the release of thyroid stimulating hormone (TSH) from the pituitary gland. TSH, also known as thyrotropin stimulates thyroid gland to secrete thyroxine hormone. Thyroxine increases the consumption of oxygen in metabolically active tissues and regulates metabolic rate of the body. Hyposecretion of TRH leads to hypothyroidism.
So, the correct answer is 'Hypothalamus'.

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