Flashcards in Neurologic pathway Deck (28)
signal enters cord as what type of input?
afferent sensory input
afferent sensory input synpases in what location?
dorsal horn at tract of lissauer
what sorts between pain and temperature information?
tract of lissauer
after synpasing in the dorsal horn at tract of lissauer, where is the next synpase location?
from gray matter to white matter to become the lateral spinothalamic tract
lateral spinothalamic tract ascends into what region?
lateral spinothalamic tract carries what type of information?
lateral spinothalamic tract terminates at the
ventral posterolateral nucleus of thalamus
thalamus synapses to...
brodmann area 3, 1, 2 and insular cortex
brodmann area 3, 1, 2 is known as...
primary somatosensory cortex
insular cortex is also known as...
insula or isle of reil
anterior portion of insular cortex regulates what type of function?
insula will forward message to what region of the brain?
hypothalamus (adenohypophysis/anterior hypothalamic nucleus)
hypothalamus regulates what function?
regulation of autonomic function
anterior hypothalamic nucleus becomes what tract?
descending autonomic tract
the descending autonomic tract passes through which structure?
descending autonomic tract travels to...
original site of dermatomal thermoregulation
preganglionic sympathetic fibers synapse with...
sympathetic paravertebral ganglionic chain
what are the three synpase outcomes of preganglionic sympathetic fibers?
ascend to ganglion at a higher cord level, descend to ganglion at a lower cord level and stay at same ganglionic level
what is the most likely outcome for dermatomal thermoregulation?
staying at same ganglion level
preganglionic sympathetic fibers will neurotransmit...
nicotinic postganglionic fiber
nicotinic postganglionic fiber transmits...
nicotinic postganglionic fibers transmit epinephrine which will terminate where and cause what effect?
tunica media and constrict vasculature
what cord levels make up the sympathetic nervous system?
sympathetic chain extends in what direction?
upward, which is a reflection of "core activity below" (supports pattern analysis)
are warmth receptors myelinated or unmyelinated?
are cold receptors myelinated or unmyelinated?
myelinated - saltatory