NEURO TERMS I

Question 1

what occurs at the corticospinal level?

Answer 1

voluntary movements
skilled movements
inhibit motor neurons

Question 2

what is the reflex arc?

Answer 2

sensory
functional synapse in the cord
intact motor nerve fiber
neuromuscular jxn
competent muscle

Question 3

what happens at the spinomuscular level?

Answer 3

final common pathway
lower motor neuron
higher motor pathways impinge on anterior horn cells

Question 4

what happens at the extrapyramidal level?

Answer 4

maintains muscle tone
controls automatic body movements like walking
refine voluntary movement
parkinsons and huntingtons disease

Question 5

what is the cerebellum responsible for?

Answer 5

coordination
maintains equilibrium
helps control posture

Question 6

what are sensory pathways?

Answer 6

anterolateral spinothalamic tract

posterior column

Question 7

what is the anterolateral spinothalamic tract responsible for?

Answer 7

carries pain and temp sensation
enters spinal cord and crosses within one or two spinal segments
protopathic sensations

Question 8

what is the posterior (dorsal) column responsible for?

Answer 8

vibratory and position, sense, touch
ascends in the fasiculi gracilis and crosses in the medulla
epicritic sensations

Question 9

epicritic sensations?

Answer 9

sensations that provide discriminative analysis with regard to the environment

Question 10

what are cutaneous nerves?

Answer 10

saphenous 
common peroneal
superficial peroneal
deep peroneal
sural tibial