Flashcards in Spinal Cord Pathways Deck (20)
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1
pain, temperature, itching, tickling, deep pressure and crude touch travel together in what pathway?
spinothalamic
2
what is meant by "upper" motor neuron?
having to do with the CNS
3
where is the alpha motor neuron located?
ventral gray matter (ventral root)
4
what motor neuron is associated with voluntary pathway?
alpha
5
what is the motor humonculous?
places where voluntary motion comes from in the cerebral cortex
6
what are extrapyramidal symptoms?
older terminology for basal ganglia
7
what is the internal capsule?
motor white matter pathway
8
what is the decussation of pyramid?
where neuronal pathways cross in the medulla
9
what does lateral corticospinal pathway control?
distal, fine motor function
10
what does anterior corticospinal pathway control?
proximal motor function of extremities
11
what does it mean to decussate?
cross over
12
what is the pathway in the basal ganglia?
input into caudate and putamen
output through globus pallidus and substantia nigra
13
what is dysmetria
inability to coordinate movement
14
what senses travel along the dorsal pathway?
proprioception
vibration
light pressure
discriminative touch
two-point discrimination
15
how many neurons does sensory pathway have?
3
16
where does spinothalamic cross?
at level of spinal column
(2nd order neuron)
17
what does VPL mean?
ventroposteriorlateral area of thalamus
18
what information does the gracile fasciculus carry?
input from lower extremities
-standing on the "grass"-medially
19
what information does the cuneate fasciculus carry?
input from upper extremities
-laterally located
20
