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boards pt1 > Descending tracts > Flashcards

Descending tracts Flashcards

1
Q

lateral corticospinal

A

precise and skilled voluntary movement

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2
Q

ventral corticalspinal

A

voluntary movement distal extremities

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3
Q

rubrospinal tract

A

flexors of proximal limbs

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4
Q

reticulospinal tract

A

inhibit or facilitate posterior muscles above T6 and anterior muscles below T6

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5
Q

vestibulospinal tract

A

extensors of the back

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6
Q

tectospinal tract

A

turns head due to vision and hearing reflex

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7
Q

origin of corticospinal tracts

A

primary motor cortex, secondary motor cortex and parietal lobe

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8
Q

destination of corticospinal tracts

A

internuncial neurons or alpha motor neurons

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9
Q

decussation of cortical spinal tracts

A

most at pyramids and descend as lateral corticospinal tracts

some continue as anterior corticospinal tracts

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10
Q

lateral corticospinal tract runs

A

length of cord

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11
Q

anterior corticospinal tract stops where

A

mid-thoracic

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12
Q

origin of reticulospinal tract

A

reticular formation

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13
Q

destination of reticulospinal tract

A

alpha and gamma motor neurons

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14
Q

decussation of reticulospinal tract

A

various locations

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15
Q

origin of tectospinal tract

A

superior colliculus (midbrain)

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16
Q

destination of tectospinal tract

A

alpha and gamma motor neurons

17
Q

origin of rubrospinal tract

A

red nucleus (midbrain)

18
Q

destination of rubrospinal tract

A

alpha and gamma motor neurons

19
Q

what info received by rubrospinal tract

A

cerebral and cerebellar info

20
Q

origin of vestibulospinal tract

A

lateral vestibular nucleus

21
Q

destination of vestibulospinal tract

A

alpha and gamma motor neurons

22
Q

what info is received by vestibulospinal tract

A

inner ear (via vestibular nerve) and cerebellar info

23
Q

sensory

A

afferent

24
Q

motor

A

efferent

25
Q

alar plates

A

sensory (dorsal)

26
Q

basal plates

A

motor (ventral)

boards pt1 (28 decks)

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