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Question : Pituitary gland, throughtermed as masterendocrinegland,operates under instructions fromhypothalamus , bywhich this controlis kept onpituitaryglands.

Answer»

Solution :(1) Hypothalamusis thecontrolling centrefor pituitarygland,
(2)Hypothalamussecretesreleasingfactors and inhibitingfac-torsand henceregulate the secretions of hypophysis. E.g . Adrenocor-ticotropinhormone releasingfactor or CRF , Thyrotropinreleasingfactoror TSHRF , GHRF and GHRIF,i.e,Growthhormone releasingand releaseinhibitingfactor, etc.
(3) Hypothalamusforms thehypothalamo-hypophysical axisthroughwhich transportationof neurohormones takeplace.
(4) Hormones likevasopressin andoxytocin are secretedby neurosecretory cellsof HYPOTHALAMUS.
(5)Hypothalamuscan register the internalchangesin the bodyas it is a partof diencephalonand THUS itaccordinglybringsabout coorinationin the bodythroughendocrinesystem.


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