Science Quiz / Hypothalamus, Pituitary Gland, and Adrenal Medulla

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Can you name the HYTQ concepts?

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QuestionAnswer
release of what substance from the arcuate nucleus of the hypothalamus cause the inhibition of the release of prolactin?
percentage of norepinephrine or noreadrenaline made by the adrenal medulla
which hormone stimulates the release of TSH(mostly) and prolactin from the anterior pituitary?
What neurotransmitter acts on chromaffin cells to increase the synthesis and release of epinephrine and norepinephrine?
Lutenizing hormone releasing hormone acts on which endocrine cell of the anterior pituitary?
The Beta class of adrenergic receptors acts to _____ cAMP levels
thyrotrophs synthesize what hormone?
in stressful situations, cortisol acts on which enzyme?
somatotrophs synthesize what hormone?
the effect of ADH on blood vessels
percentage of epinephrine or adrenaline made by the adrenal medulla
2 hormones of the posterior pituitary
type of trophic endocrine cell that synthesizes prolactin
ADH V1 receptors are located in the ________
The hormone that stimulates the release of growth hormone from the anterior pituitary comes from the _____ nucleus of the hypothalamus.
precursor to ACTH
epinephrine and norepinephrine act as negative feedback regulators of which enzyme?
under periods of stress, which hormone can stimulate the release of adrenocorticotropin hormone (ACTH)?
The hormone that inhibits the release of growth hormone from the anterior pituitary comes from the _____ nucleus of the hypothalamus.
catalyzes the conversion of dopamine to norepinephrine?
this hormone is secreted from the post. pituitary in response to a increase in plasma osmolality or a decrease in blood volume
Thyrotropin releasing hormone can come from which 2 hypothalamic nuclei?
True or False: TSH, FH, and LH are peptide hormones.
these trophic cells synthesize follicle stimulating hormone and lutenizing hormone
The hormones released by neurons of the hypothalamus act on trophes or endocrine cells of the anterior or posterior pituitary?
catalyzes the conversion of norepinephrine to epinephrine?
Which two proteins released by the anterior pituitary are peptide hormones?
what enzyme catalyzes the conversion of tyrosine to L Dopa?
QuestionAnswer
this hormone is involved in inducing uterine contractions and stimulation of tactile receptors in the nipples of the lactating breast
what is responsible for transporting catecholamines in and out of chromaffin granules?
conversion of norepinephrine to epinephrine occurs where in the cell?
2 major sites of action for oxytocin
Corticotropin releasing hormone is released from the ______ nucleus of the hypothalamus.
Where do the neurons of the nuclei of the hypothalamus terminate?
The anterior and medial nuclei and the preoptic nucleus of the hypothalamus release which hormone?
which two enzymes act to metabolize epinephrine and norepinephrine?
True or False: The parvocellular neurons of the hypothalamic nuclei release releasing or inhibiting hormones in the circulation at the median eminence.
This adrenergic receptor acts to decrease cAMP levels
vasopressin and oxytocin are composed of how many peptides?
most abundant endocrine cell in the anterior pituitary
hormone that inhibits the release of growth hormone
what enzyme catalyzes the conversion of L Dopa to dopamine?
vasopressin or ADH predominantly comes from which nucleus of the hypothalamus?
carrier proteins for ADH and oxytocin
cortisol is made where?
Hormone that stimulates the release of growth hormone
what is the major metabolite of epinephrine and norepinephrine in the urine?
on which type of adrenergic receptor will epinephrine illicit a greater response than norepinephrine?
activates myoepithelial cells for release of milk from the breast
This adrenergic receptor acts to increase phosphoinositide
ADH V2 receptors are located in the ________
the conversion of dopamine to norepinephrine occurs where in the cell?
oxytocin predominantly comes from which nucleus of the hypothalamus?
type of trophic endocrine cell that synthesizes adrenocorticotropic hormone, B endorphin, y-lipotropin
True or False: Norepinephrine and epinephrine required a carrier protein to be transported in the blood.

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