Zoology - Chemical Coordination and Integration Question with Solution | TestHub
LH and FSH are collectively called
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Trophe nourishment. Most of the tropic hormones are secreted by anterior lobe of pituitary.Gonadotropinsorgonadotropic hormonesare those which stimulate the gonads (testes and ovaries),FSH(Follicle Stimulating Hormone) stimulates growth ofovarian folliclesand the secretion ofoestrogensin thefemaleandspermatogenesis(formation of sperms) in themale. Luteinizing Hormone(LH)stimulatescorpus luteumof the ovary to secreteprogesteronein the females. In male, it activates theLeydig's(interstitial)cellsof the testis to secreteandrogens.Somatotropins or somatotropic hormone orgrowth hormonestimulates growth directly and in conjugation with other hormones the target cells of these hormones are various body cells which undergo growth.Luteotropic hormonesstimulates the corpus luteum of the ovary to secrete progesterone hormone. It is also called Prolactin Hormone (PRL) orMammotropin Hormone(MTH) because its main physiological effect is to activate growth of breast during pregnancy and secretion of mammary glands after child birth.Oxytocin(OT; pitocin) is secreted by posterior lobe of pituitary. It promotes contraction of the uterine muscles and myoepithelial cells of the lactating breast, ejecting the milk after child birth. Oxytocin is calledbirth hormoneandmilk ejecting hormone.
