Which of the following pituitary hormone is a direct action hormone?

MSH

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ICSH

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ACTH

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TSH

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Solution

The correct option is D MSH
MSH is an important pituitary hormone that regulates the melanin synthesis in cells called melanophores (a type of chromatophore), that are in the skin of amphibians, some fishes, and reptiles. Light reflected from water surface stimulates photoreceptors, which send information to the hypothalamus. Pituitary MSH then causes the pigment in the melanophores to disperse and the skin to darken. Thus, the correct answer is option A.

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Which of the following hormone is not produced by the pituitary gland?

\begin{matrix} Column I & Column II i. GnRH & a. Thyroid gland ii. ACTH & b. Mammary glands iii.TSH & c.Adrenal~gland iv. Prolactin & d. Gonads \end{matrix}

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