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13 Cards in this Set
- Front
- Back
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define gonadotropin
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a hormone that stimulates the ovaries/testes
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the endocrine system & the nervous system are linked via the action of the _____
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hypothalamus
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7 glands/gland sets that make up the endocrine system:
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pituitary, adrenals, thyroid, ovaries, testicles, pancreas, & kidneys
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exogenous hormones vs endogenous hormones
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exogenous are administered to animal, endogenous are hormones produced naturally in the body
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the pituitary gland is located at the ____ of the brain just ventral to the _____, and is connected to the brain by a ____
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base, hypothalamus, stalk
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the 2 main lobes of the pituitary gland
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anterior, posterior
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the 2 reasons hormones are administered to animals
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1- to correct a deficiency of that hormone
2- to obtain a desired effect [i.e. estrus] |
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define trophic hormone
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a hormone that results in the production of a 2nd hormone in a target gland
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name 4 hormones of the anterior pituitary
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1- ACTH [adrenocorticotropic]
2- TSH [thyroid-stimulating] 3- FSH [follicle-stimulating] 4- LH [leutinizing] |
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name the 2 hormones of the posterior pituitary
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1- ADH [anti-diuretic]
2- oxytocin |
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with negative feedback, ____ levels of a hormone are sensed by the hypothalamus which then ____ the amount
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high, reduces
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with positive feedback, ____ levels of a hormone are sensed by hypothalamus which then ____ the amount
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low, increases
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neurohormonal reflex is what & is initiated by stimulation of what:
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the release of oxytocin by the posterior pituitary; the udder by a calf or the uterus in prep for birth
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