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15 Cards in this Set
- Front
- Back
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The somatic NS starts where?
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in the somatic motor association area
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The somatic NS has how many motor neurons...and target is....
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has one motor neuron to the target which is skeletal muscle tissue
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THe NT used by the somatic NS are?
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The NT used is ACh and is always excitatory
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The autonomic NS is responsible for....
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the unconscious control of the visceral organs
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The autonomic NS starts where....and the target is?
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has 2 motor neurons to the target which is cardiac muscle tissue, smooth muscle tissue, and glands.
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What are the NT used in autonomic NS?
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the neurotransmitters used are ACh, NE, and E and can be excitatory or inhibitory
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Sympathetic NS generates what?
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the fight or flight response
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physical effects of Sympathetic NS?
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incr heart rate
incr resp incr blood circulation decr digestion vasoconstriction of blood vessels incr B/P dilation of pupil |
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Sympathetic preganglionic releases what and postganglionic releases what?
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preganglionic releases ACh, postganglionic releases nicotinic ACh, NE, and E
the target organ has alpha/beta receptors and may be excitatory or inhibitory |
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Parasympathetic NS generates the...
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resting and digesting response
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physical signs of parasympathetic NS....
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decr heart rate
decr resp decr blood circulation incr digestion vasodilation of blood vessels decr B/P constriction of pupil |
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preganglionic neuron of parasympathetic NS releases what....and post releases what?
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preganglionic neuron releases ACh, postganglionic neuron has nicotinic ACh receptors which are always excitatory
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the target organ of parasympathetic NS has what receptors?>
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The target organ has muscarinic ACh receptors which can be excitatory or inhibitory
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dual innervation
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most organs are innervated by bothe the parasympathetic and sympathetic NS...the NS will have opposing effects
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autonomic tone
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the organs are ennervated by the sympathetic NS only....amt of stimulation determines the overall effect
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