Term
| The two subdivision of the ANS |
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Definition
Sympathetic
Parasympathetic |
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Term
Sympathetic
location
reaction |
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Definition
Cell bodies found in the thorax and lumbar section of the spinal cord. Lateral grey horns.
Fight or flight Your need to get away from danger |
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Term
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Definition
| Two cells in the pathway. cell to ganglia (Preganglia/short) ganglia to organ (post ganglia/long) |
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Term
Parasympathetic
location
reaction |
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Definition
cell bodies found in the cranial(brain) sacral (spine)
Rest and Digest
pre ganglia (very long) post ganglia (relatively short)-in or near the organ |
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Term
Sympathetic ganglia
(Two types) |
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Definition
Sympathetic chain along spine
Collateral Ganglia-Celiac
-Superior/inferior mesenteric |
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Term
| Sympathetic Neurotransmitters |
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Definition
Preggl- releases acetylochonie -excites
post ggl-releases norepinephrine- excites |
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Term
Sympathetic receptor type
Alpha |
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Definition
| constricts peripheral blood vessels, closes sphincters |
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Term
Sympathetic receptor type
beta |
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Definition
Increase metabolism, relaxes blood vessels and airway muscles.
Heart- increases HR and contraction strength
Bronchioles- opens airways |
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Term
| parasympathetic neurotransmitters |
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Definition
| Acetylcholine (ACh) released by pre-excitatory and post-can be both ganglia neurons everywhere but in the post ganglia sympathetic. |
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Term
parasympathetic receptor
nicotinic |
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Definition
excitatory
synapse between pre and post ganglia
also at neuromuscular junctions |
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Term
parasympathetic receptor
muscarinic |
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Definition
excitatory or inhibitory
synapses between post ganglia cells and effector |
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Term
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Definition
Organs being innervated by both Sympathetic and Parasympathetic
this allow for homeostasis |
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Term
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Definition
| drug, medicine, chemical ect. that has the same affect as the bodies chemical. ex caffeine is a NE agonist, it speeds up your heart rate. |
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Term
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Definition
| drug, medicine, chemical ect. that does the opposite of your bodies chemical. |
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