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BSTR301
ANS
12
Anatomy
Not Applicable
05/17/2008

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Term
How are autonomic nerves different from somatic nerves?
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
Term
Which organ(s) are only innervated by the SNS (not the PSNS)?
Definition
  • adrenal gland
  • kidney
  • spleen
  • sweat gland, blood vessel, hair follicle muscle, adipose tissue
Term
Which organ(s) is only innervated by the PSNS (not SNS)?
Definition
Lacrimal gland (tears)
Term
Which sympathetic ganglia correspond with innervation of the stomach, spleen, liver, small intestine, and kidneys?
Definition
Thoracic ganglion 5-9, or 10 via greater splanchnic nerve --> celiac ganglion --> destination
Term
Which sympathetic ganglion innervate the small intestine and colon?
Definition
thoracic ganglion 9 & 10 via lesser splanchnic nerve --> celiac and superior mesenteric ganglia
Term
Which sympathtetic ganglia innervate the rectum, urinary bladder, and reproductive organs?
Definition
lumbar ganglia via lumbar splanchnic nerve --> inferior mesenteric ganglion --> to destination
Term
Which cranial nerves does the PSNS innervate?
Definition
CN III, VII, IX, X
Term
what are the 3 types of sympathetic pathways? describe each
Definition
  • spinal nerve route
  • sympathetic route
  • splanchnic nerve route
Term
What does the adrean cortex secrete?
Definition
steroid hormones (edocrine system)
Term
What is the adrenal medulla? what is it's function?
Definition
  • the adrena medulla is a modified sympathetic ganglion
  • secretes adrenaline and NE --> into bloodstream
  • preganglionnic  sympathetic neurons go through adrenal cortex into medulla
Term
What differents the PSNS from the SNS in terms of NT released and sensory info?
Definition
PSNS only releases ACh and carries most sensory info EXCEPT noxious info, which is carried by the SNS
Term
What is Raynaud Disease? What can put you at risk for this Disease?
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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