Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
sympathetic origin - outflow, segments?
|
thoracolumbar outflow - lateral gray horn of s.p. segments T1-L2
|
|
|
sympathetic location of ganglia
|
within few cm of cns - paravertebral ganglia & prevertebral ganglia
|
|
|
sympathetic relative length of preganglionic & postganglionic fibers
|
short pre - long post
|
|
|
sympathetic rami communicantes
|
gray & white rami communicantes - white has myelinated (pregang fibers) - gray has unmyelinated (postgang fibers)
|
|
|
sympathetic degree of branching of preganglionic fibers
|
extensive
|
|
|
sympathetic functional goal
|
prepares body to cope with emergencies & intense muscular activity
|
|
|
sympathetic neurotransmitters
|
all pregang fibers release Ach - most postgang fibers release norepinephrine - postgang fibers serve sweat glands & some b.v. of sk. Muscle release Ach - neurotransmitter activity augmented by release of adrenal medullary hormones
|
|
|
parasympathetic origin - outflow, segments?
|
craniosacral outflow - brain stem nuclei of cranial nerves 3,7,9,10 - spinal cord segments S2-S4
|
|
|
parasympathetic location of ganglia
|
ganglia in (intramural) or close to visceral organ served
|
|
|
parasympathetic relative length of preganglionic & postganglionic fibers
|
long pregang - short postgang
|
|
|
parasympathetic rami communicantes
|
none
|
|
|
parasympathetic degree of branching of preganglionic fibers
|
minimal
|
|
|
parasympathetic functional goal
|
maintenance functions - conserves & stores energy
|
|
|
parasympathetic neurotransmitters
|
all fibers release Ach (cholinergic)
|
