Lecture 5 Flashcards Preview

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Flashcards in Lecture 5 Deck (10)
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1
Q

upper motor neurons : originate in cortex :: lower motor neurons : terminate / synapse in either ___ or ___

A

spinal cord / brainstem

2
Q

this tract originates in the primary motor cortex and terminates at multiple levels of the spinal cord

A

corticospinal

3
Q

this tract originates in the primary motor cortex and crosses over at multiple levels of the brainstem

A

corticobulbar

4
Q

the fibers of which tract cross over at the individual cranial nerves they will innervate?

A

corticobulbar

5
Q

muscles of the limbs : unilateral contralateral innervation :: muscles of the head and neck : ___ motor innervation

A

bilateral

6
Q

this type of sensory receptor involves deep sensations from muscles and joints as well as sense of movement and position

A

proprioceptors

7
Q

special senses : hearing, vision, taste, smell, balance :: ___ senses : all other sensations

A

general

8
Q

this 3 order neuron pathway for sensation includes: sensory receptor to brainstem pathway (1st order), brainstem to thalamus pathway (2nd order), thalamus to ___ pathway (3rd order)

A

primary sensory cortex

9
Q

all sensory information passes through the ___ before reaching the cortex

A

thalamus

10
Q

name of a collection of nerve cell bodies outside the central nervous system

A

ganglia