Term
| How are autonomic nerves different from somatic nerves? |
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Definition
- Somatic nerves: one, myelinated neuron that releases ACh
- Autonomic: two neurons; first one myelinated (cell body in lateral horn), synapses at an autonomic ganglion, second unmyelinated, releases either ACh or NE at site
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Term
| Which organ(s) are only innervated by the SNS (not the PSNS)? |
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Definition
- adrenal gland
- kidney
- spleen
- sweat gland, blood vessel, hair follicle muscle, adipose tissue
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Term
| Which organ(s) is only innervated by the PSNS (not SNS)? |
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Definition
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Term
| Which sympathetic ganglia correspond with innervation of the stomach, spleen, liver, small intestine, and kidneys? |
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Definition
| Thoracic ganglion 5-9, or 10 via greater splanchnic nerve --> celiac ganglion --> destination |
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Term
| Which sympathetic ganglion innervate the small intestine and colon? |
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Definition
| thoracic ganglion 9 & 10 via lesser splanchnic nerve --> celiac and superior mesenteric ganglia |
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Term
| Which sympathtetic ganglia innervate the rectum, urinary bladder, and reproductive organs? |
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Definition
| lumbar ganglia via lumbar splanchnic nerve --> inferior mesenteric ganglion --> to destination |
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Term
| Which cranial nerves does the PSNS innervate? |
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Definition
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Term
| what are the 3 types of sympathetic pathways? describe each |
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Definition
- spinal nerve route
- sympathetic route
- splanchnic nerve route
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Term
| What does the adrean cortex secrete? |
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Definition
| steroid hormones (edocrine system) |
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Term
| What is the adrenal medulla? what is it's function? |
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Definition
- the adrena medulla is a modified sympathetic ganglion
- secretes adrenaline and NE --> into bloodstream
- preganglionnic sympathetic neurons go through adrenal cortex into medulla
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Term
| What differents the PSNS from the SNS in terms of NT released and sensory info? |
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Definition
| PSNS only releases ACh and carries most sensory info EXCEPT noxious info, which is carried by the SNS |
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Term
| What is Raynaud Disease? What can put you at risk for this Disease? |
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Definition
| extremities often cold due to SNS triggering vasoconstiction to increase blood flow to "more important" areas; can be a risk of being stressed |
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