Descending tracts

Question 1

lateral corticospinal

Answer 1

precise and skilled voluntary movement

Question 2

ventral corticalspinal

Answer 2

voluntary movement distal extremities

Question 3

rubrospinal tract

Answer 3

flexors of proximal limbs

Question 4

reticulospinal tract

Answer 4

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

Question 5

vestibulospinal tract

Answer 5

extensors of the back

Question 6

tectospinal tract

Answer 6

turns head due to vision and hearing reflex

Question 7

origin of corticospinal tracts

Answer 7

primary motor cortex, secondary motor cortex and parietal lobe

Question 8

destination of corticospinal tracts

Answer 8

internuncial neurons or alpha motor neurons

Question 9

decussation of cortical spinal tracts

Answer 9

most at pyramids and descend as lateral corticospinal tracts

some continue as anterior corticospinal tracts

Question 10

lateral corticospinal tract runs

Answer 10

length of cord

Question 11

anterior corticospinal tract stops where

Answer 11

mid-thoracic

Question 12

origin of reticulospinal tract

Answer 12

reticular formation

Question 13

destination of reticulospinal tract

Answer 13

alpha and gamma motor neurons

Question 14

decussation of reticulospinal tract

Answer 14

various locations

Question 15

origin of tectospinal tract

Answer 15

superior colliculus (midbrain)

Question 16

destination of tectospinal tract

Answer 16

alpha and gamma motor neurons

Question 17

origin of rubrospinal tract

Answer 17

red nucleus (midbrain)

Question 18

destination of rubrospinal tract

Answer 18

alpha and gamma motor neurons

Question 19

what info received by rubrospinal tract

Answer 19

cerebral and cerebellar info

Question 20

origin of vestibulospinal tract

Answer 20

lateral vestibular nucleus

Question 21

destination of vestibulospinal tract

Answer 21

alpha and gamma motor neurons

Question 22

what info is received by vestibulospinal tract

Answer 22

inner ear (via vestibular nerve) and cerebellar info

Question 23

sensory

Answer 23

afferent

Question 24

motor

Answer 24

efferent

Question 25

alar plates

Answer 25

sensory (dorsal)

Question 26

basal plates

Answer 26

motor (ventral)