physiology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| origin of preganglionic fiber for the sympathentic system | thoracic and lumber regions of spianl cord
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| origin of postganglionic fiber of sympathetic system | sympathetic ganglion chain near spinal cor or collateral ganglia about halfway between spinal cord and effector organs
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| preganglionic fibers for sympathetic system | short cholinergic
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| postganglinoic fibers in the sympathetic | long adrenergic (most) long cholinergic (few)
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| effector organs that the sympathetic system innervates | cardia muscle, almost all smooth muscle most exocrine glands and some endocrine glands
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| types of receptors for preganglionic neurotransmitters in the sympathetic system | nicotinic
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| type of receptor for postganglionic neurotransmitter in the sympathetic system | alpha 1 alpha 2 beta 1 and beta 2
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| what is the dominate role for the sympathetic division | emergency fight or flight situations; prepares body for strenuous physical activity
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| origin of preganglionic fiber for the PARAsympathentic system | brain and sacral region of spinal cord
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| origin of postganglionic fiber of PARAsympathetic system | terminal ganglia (in or near effector organs)
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| preganglionic fibers for PARAsympathetic system | long cholingeric
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| postganglinoic fibers in the parasympathetic system | short cholinergic
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| effector organs that the sympathetic PARAsystem innervates | cardiac muscle, most smooth muscle, most exocrine glands, and some endrocrine glands
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| types of receptors for preganglionic neurotransmitters in the PARAsympathetic system | nicotinic
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| type of receptor for postganglionic neurotransmitter in the PARAsympathetic system | muscarinic
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| what is the dominate role for the PARAsympathetic division | dominates in quiet, relaxed situations; promotes "general housekeeping" activities such as digestion
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