Term
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Definition
Long pre/short post Release Ach at both the nicotinic and muscarinic receptors |
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Term
Sympathetic nervous system |
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Definition
Short pre/long post First neuron releases Ach onto the nicotinic receptor, the 2nd can release NE, Epi, or Ach (onto muscarinic receptor for sweat glands!) the others are onto alapha and beta |
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Term
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Definition
BP = CO X TPR CO = HR X SV So if have increase in mean BP this elicits baroreceptor discharge resulting in increased PANS activity leading to bradycardia (leads to decreased HR, force of contraction, and vasoconstriction) |
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Term
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Definition
| Decrease in BP --> decreased renal blood flow --> renin release --> formation of angiotensin II (on its own causes vasoconstriction) --> increases aldosterone release (retains Na+/H2O) increasing venous return/CO |
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Term
Pupillary size (muscarinics) |
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Definition
Response = miosis Contraction of sphincter muscles (M3 agonist) Parasympathetics |
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Term
Pupillary size (adrenergics) |
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Definition
Response = mydriasis Contraction of radial muscles (α1) Sympathetics |
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Term
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Definition
ONLY deals with the parasympathetic NS Ciliary mm. (M3) allow for the lens to accomdate to near vision by rounding up If you give a muscarinic antagonist (like atropine) you can paralyze accomodation to allow for a better eye exam along with an alpha 1 agonist to cause mydriasis |
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