Term
| what are pelvic splanchnics? |
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Definition
| parasympathetic nerves that come off of sacral nerves, S2-4 |
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Term
| difference between pudendal and pelvic splanchnics? |
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Definition
pudendal - has all 4 types of nerves (sympathetic); is combo of S2-4
pelvic splanchnics - has visceral motor parasympathetic only; is from S2-4; innervates bladder and involuntary sphincter |
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Term
| what innervates the bladder? |
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Definition
sympathetic - hypogastric (T11-L2) and sacral splanchnics
parasympathetic - pelvic splanchnics |
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Term
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Definition
visceral sensory on the bladder wall to S2-4.
visceral motor parasympathetic via pelvic splanchnics for the internal sphincter.
somatic motor neurons of pudendal nerve control external sphincter.
defecation is similar with general sensory nerves (from inferior rectal of pudendal nerve) as well. |
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Term
| what innervates the testes/ovaries? |
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Definition
symp - T10-T11
parasymp - vagus nerve |
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Term
| what innervates the male/female reproductive organs? |
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Definition
sympathetic - hypogastric and sacral splanchnics
parasympathetic - pelvic splanchnics |
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Term
| what innervations cause an erection? |
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Definition
primary - visceral motor parasympathetic from the pelvic splanchnics (aka cavernous nerves), dilate arteries
secondary - somatic motor neurons from the pudendal nerve, contract bulbospongiosus and ischiocavernosus |
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Term
| what controls ejaculation? |
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Definition
| visceral motor sympathetic - contract smooth muscle of epididymis, ductus deferens, seminal vesicles, and prostate |
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Term
| what innervates the rectum? |
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Definition
| lumbar splanchnics (L1-2) and pelvic splanchnics |
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