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18 Cards in this Set
- Front
- Back
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What does the somatic nervous system innervate, how many neuron chains, and what kind of neurotransmitters? |
skeletal muscle, single chain, ACh is always excitatory |
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What does the autonomic nervous system innervate, how many neuron chains, and what kind of neurotransmitters? |
smooth and cardiac muscle and glands, two neuron chain, ACh and NE that are excitatory or inhibitory |
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What division of the autonomic nervous system is "resting and digesting" and which one is "fight or flight" |
parasympathetic, sympathetic |
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What's the origin of preganglionic fibers in the parasympathetic division? |
brain and sacral spinal cord |
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What kind of fibers does the parasympathetic division have? |
long preganglionic, short postganglionic fibers |
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What's the origin of preganglionic fibers in the sympathetic division |
thoracic and lumbar regions |
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What kind of fibers does the sympathetic division have? |
short preganglionic, long postganglionic |
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What's the parabertebral ganglia and fibers that connect ganglia? |
sympathetic trunk |
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What's all sympathetic preganglionic neurons entrance to sympathetic trunk? |
white rams communicans |
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What carries all sympathetic preganglionic neurons from the sympathetic trunk to peripheral organs? |
gray ramus communicans |
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What's the fiber exit route? |
lateral horn, spinal nerve, white rams communicans, sympathetic trunk |
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What's the innervation of both sympathetic and parasympathetic in most organs? |
dual innervation |
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What are the exceptions to dual innervation? |
adrenal medulla, kidney, skin, and most muscles |
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What keeps vessels in a continuous state of partial constriction? |
sympathetic (vasomotor) tone |
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What neurotransmitters in all parasympathetic postganglionic axons? |
Acetylcholine |
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What neurotransmitters in all sympathetic postganglionic fibers? |
Norepinephrine |
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What's the main integrative center for ANS activity? |
hypothalamus |
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Where does unconscious input come from on the hypothalamic center? |
limbic system structures |
