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22 Cards in this Set
- Front
- Back
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ultimate control of hormones belongs to
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nervous system
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hormone regulation is controlled mainly by the ____ & ____
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hypothalamus - sympathetic n.s.
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the nervous system may ____ other control mechanisms
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over-ride
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stimulation or inhibition of endocrine glands can be from what 3 sources
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hormonal stimuli - humoral stimuli - neural stimuli
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____ stimuli is regulation by other hormones
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hormonal
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in hormonal stimuli, hormones may ____ or ____ the release of the hormones
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stimulate - inhibit
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in hormonal stimuli, the ____ regulates the anterior pituitary
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hypothalamus
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in hormonal stimuli, the ____ ____ stimulate the release of hormones from other glands
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pituitary hormones
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RH stimulates ____ & ____ of hormones from the anterior pituitary
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production - release
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IH inhibits production & release of hormones from the ____ ____
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anterior pituitary
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regulation through changing ion or nutrients is ____ stimuli
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humoral
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in humoral stimuli, levels in the ____ inhibits or stimulates the release of ____
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blood - hormones
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example of humoral stimuli: low blood Ca2+ → ____ released from ____ gland → Ca2+ released from
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PTH - parathyroid - bone
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____ ____ is the least common endocrine gland stimuli
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neural stimuli
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in neural stimuli, ____ ____ may stimulate the release of hormones
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nerve impulses
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example of neural stimuli: sympathetic neurons → ____ ____
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adrenal medulla
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2 types of feedback mechanisms
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negative + positive feedback system
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in negative feedback system, rising hormone or ion levels ____ hormone release from the gland
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in positive feedback system, rising hormone levels cause ____ in hormone being secreted
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increase
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example hormones of positive feedback system
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oxytocin - prolactin
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hyposecretion or hypersecretion may result in
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disorder
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4 examples of hypo/hypersecretion disorders
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diabetes - grave's disease (hyper) - addison's disease (hypo) - cushing's disease (hyper)
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