Lower Pons (pg. 94 and 96)

Question 1

function of abducens nucleus (8)

Answer 1

abduct eye

Question 2

input to abducens nucleus (8)

Answer 2

descending motor tracts, vestibular nuclei, reticular formation

Question 3

output from abducens nucleus (8)

Answer 3

ipsi. lateral rectus muscle

Question 4

function of facial motor nucleus (7)

Answer 4

ipsi. motor control of facial muscles

Question 5

input to facial motor nucleus (7)

Answer 5

descending motor tracts

Question 6

output from facial motor nucleus (7)

Answer 6

respective muscles

Question 7

function of superior olivary nucleus

Answer 7

auditory pathway

Question 8

input to superior olivary nucleus

Answer 8

bilateral cochlear nuclei

Question 9

output from superior olivary nucleus

Answer 9

bilateral inferior colliculus, thru lateral lemniscus

Question 10

function of medial longitudinal fasciculus
(vestibulospinal tract)

Answer 10

balance and posture

Question 11

input to medial longitudinal fasciculus

vestibulospinal tract

Answer 11

brainstem, ipsi. medial vestibular nucleus

Question 12

output from medial longitudinal fasciculus

vestibulospinal tract

Answer 12

motor neurons

Question 13

function of tectospinal tract

Answer 13

reflex postural movement

Question 14

input to tectospinal tract

Answer 14

tectum (superior colliculus)

Question 15

output from tectospinal tract

Answer 15

contra. motor neurons in spinal cord

Question 16

function of lateral lemniscus 
(only lower pons)

Answer 16

hearing

Question 17

input to lateral lemniscus

only lower pons

Answer 17

cochlear nucleus (contra.) and superior olivary nucleus (ipsi.)

Question 18

output from lateral lemniscus

only lower pons

Answer 18

inferior colliculus