Ap ch 18 B
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The pituitary gland consists of 2 endocrine glands | anterior lobe-adenohypohysis, posterior lobe-neurohypopysis
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another name for the anterior lobe is | adenohypohsis
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another name for posterior lobe | neurohypopsis
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Hormones of the anterior are stimulated by what?? | releasing hormones of hypothalamus,suppressed by inhibiting hormones
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what connects the pituitary to the hypothalamus & is the means by which regulatory hormones travel to pituitary | Hypophyseal portal system
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What is LTH(Lactogenic hormone or lutetropic hormone)& where is it | prolcatin, it is in the anterior pituitary gland
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What does prolactin promote | during pregnant- breast development
after delivery- initiates milk secretion
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What does prolactin help maintain | Corpus Luteum
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What is the growth hormone | Somatotropic
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What does somatrotropic do?? & where is it | accelerates protien anabloism(synthesis), & promotes growth & in the anterior pituitary gland
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What parts are sensitive to somatotropic | skeletal muscle cells & Chondrocytes
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What disorder is caused by deficient somatotropic | dwarfism
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what does liver & other cells produce ?? | insunlike growth factors (IGF'S) that increase amino acid uptake
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Hormones that have a stimulating effect on other endocrine gland is called | Tropic Hormones
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What is thyrotropins & where is it | Thyroid stimulating hormone (TSH), in the anterior pituitary gland
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What does TSH do | promotes growth & development of thyroid gland , stimulates thyroid gland to secrete thyroid hormone ( throxine)
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What is ACTH & where is it | Adrencorticotropin in the anterior pituitary gland
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What does ACTH do?? | promotes growth & development of adrenal cortex, stimulates cortex to secrete cortisol & other glucorticoids
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What does follicle-stimulating hormone(FSH) do & where is it | stimulates graafian follicle to start to grow & mature,Stimulates follicle cells to secrete estrogen {egg formation}, in the anterior pituitary gland
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In males, FSH stimulates the development of seminferous tubles | maintain spermotogenesis
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Luteiniing hormone(LH) is a ? & where is it | Tropic hormone, in the anterior pituitary gland
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what does lutenizing hormone(LH) do | acts with FSH to cause complete maturation of follicle & brings about ovaluation, stimulates the formation of corpus luteum(lutenizing effect), stimulates corpus luteum to secrete progesterone & estrogen
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In males what is LH called | Interstial cell stimulating hormone ICSH
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What does the ICSH do | Stimulates intersital cells in testes to develop & secrete testosterone
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What is another name for melancoyte stimulating hormone(MSH)& where is it | Intermedin, in the anterior pituitary gland
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What does MSH do | produced by pars intermedia,tends to produce increased pigmentaion of skin
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What controls the secretion of hormones | hypothalmus
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What are releasing hormones | neurosecretions produced in the hypothalmus that reach anterior pituitary gland via blood in piturary portal system
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What does the releasing hormone do | regulates hormone production
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where does the negative feedback mechanisms operate? | btwn target glands & anterior lobe of putitary
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Where is ADH | In the posterior pituary gland
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what is the ADH | Anti-duretic Hormone
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Where does ADH act on ? | kidneys
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What is another name for ADH | vasopressin
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What does ADH synthesizes by | neurons in supraoptic nucleus of hypothalmus
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