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52 Cards in this Set
- Front
- Back
grey matter contains |
neurons |
|
white matter contains |
axons |
|
each dorsal root contains a... |
spinal ganglion |
|
______ fibers are in the ventral horn of the grey matter |
somatic |
|
______ fibers are in the intermediate horn |
autonomic |
|
brachial plexus is located.... |
C6-T2 |
|
lumbosacral plexus is located... |
L4-L7 |
|
sensory ganglia are located near but outside the... |
brainstem |
|
cell bodies of motor fibers are located... |
within the brainstem |
|
sympathetic peripheral ganglia are near the _________ and are ______. |
SC, long |
|
parasympathetic peripheral ganglia are near the __________ and are ________. |
target organ, short |
|
what type of cells line the ventricles? |
ependymal cells |
|
3 things that determine mem pot |
1. concentration of ions. 2. action of pumps 3. permeability of memb |
|
what NT leads to muscle contraction? |
Acetylcholine |
|
Excitatory NT's open channels for ______ ions. |
positive |
|
Inhibitory NT's open channels for ______ ions. |
negative |
|
2 excitatory NTs |
glutamate and Ach |
|
inhibitory NT in the brain |
GABA |
|
inhibitory NT in the SC |
glycine
|
|
the groove in the lateral walls of the neural tube is called the... |
sulcus limitans |
|
dorsal plate is... |
sensory |
|
ventral plate is... |
motor |
|
neural tube layer for cell proliferation |
germinal layer |
|
neural tube layer that becomes white matter |
marginal layer |
|
neural tube layer that becomes grey matter |
mantle layer |
|
2 myelin sheath functions |
prevents ion leakage insulates nerve fibers |
|
in PNS, each nerve fiber is surrounded by... |
endoneurium |
|
in PNS, bundle of nerve fibers is surrounded by... |
perineurium |
|
the entire nerve is surrounded by... |
epineurium |
|
UMN in within the __NS |
CNS |
|
UMN cell bodies are located in which 2 places? |
motor nuclei of brainstem motor cortex of forebrain |
|
LMN induces... |
muscle contraction |
|
LMN cell bodies are located in which 2 places? |
brainstem spinal cord |
|
sensory info is projected to... |
cerebellum and somatosensory cerebrum |
|
sensory components of cranial nerves synapses in its... |
cranial nerve nucleus |
|
monosynaptic reflexes involve... |
one sensory neuron and one motor neuron |
|
polysynaptic reflexes involve... |
interneurons |
|
cervical intumescence is ______ to _________ limbs. |
motor, thoracic |
|
lumbosacral intumescence is ______ to limbs. |
motor, pelvic |
|
dorsal funiculi carry _________ _______ tracts. |
ascending, sensory |
|
ventral funiculi carry ________ _______ tracts. |
descending, motor |
|
lateral funiculi carry... |
both! |
|
important UMN cell bodies for quadruped movement are in.... |
brainstem nuclei |
|
example of fast conduction velocity |
proprioception |
|
example of slow conduction velocity |
nociception |
|
Un/Subconscoius proprioception goes to the _____________ and involves the _________ nerve. |
cerebellum, vestibular |
|
conscious proprioception goes to the _______ and involves the _________ nerve. |
forebrain, trigeminal |
|
unconscious proprioception is _____lateral. |
ipsilateral |
|
conscious proprioception is _______lateral. |
contralateral |
|
(CP) fasciculus gracilis is the ______ portion of _________ funiculis. Axons from _______ limbs ________ |
medial, dorsal pelvic, caudal |
|
(CP) fasciculus cuneatus is the ______ portion of _________ funiculus. Axons from _______ limbs ________ |
lateral, dorsal thoracic, cranial |
|
examples of 2 reflexes |
palpebral and corneal |