brainstem

Question 1

divisions of brainstem

Answer 1

medulla
pons
midbrain

Question 2

medulla reflex centers

Answer 2

cardiovascular
respiratory
vestibular

Question 3

medulla cranial nerves

Answer 3

IX, X, XI, XII

Question 4

closed medulla has

Answer 4

central canal

Question 5

open medulla has

Answer 5

4th ventricle

Question 6

___ exit the medulla through post olivary sulcus

Answer 6

IX, X, XI

Question 7

___ exit medulla through pre olivary sulcus

Answer 7

XII

Question 8

pons function

Answer 8

pathway for descending signals between forebrain and cerebellum or medulla, or ascending signals between medulla and thalamus
respiratory centers for control rate of breathing

Question 9

pons CNs

Answer 9

V, VI, VII, VIII

Question 10

pons divided into

Answer 10

tegmentum and base

Question 11

pons base

Answer 11

descending fibers running rostrocaudally

Question 12

pons tegmentum

Answer 12

site of several cranial nerve nuclei and connections to the inferior and superior cerebellar penduncles

Question 13

cerebllar peduncles fibers connect

Answer 13

superior: cerebellum –> midbrain
middle: cerebellum –>pons
inferior: cerebellum–> medulla

Question 14

CN at ponto medullary junction

Answer 14

7 and 8 and 6

Question 15

CN at pons base

Answer 15

V

Question 16

___ exit from base of pons through middle cerebllar peduncle

Answer 16

V

Question 17

___ exit inferior pontine sulcus at pontomedullary junection

Answer 17

VI, VII, VIII

Question 18

midbrain connects

Answer 18

brainstem and forebrain

Question 19

midbrain functions

Answer 19

eye movements and pupillary light reflex

auditory and visual processing

Question 20

midbrain CN

Answer 20

III and IV

Question 21

midbrain divided into

Answer 21

tectum and cerebral peduncle

Question 22

midbrain tectum

Answer 22

roof-dorsal to cerebral aqueduct
two pairs of nuclei-superior and inferior colliculi
IV emerges caudal to inferior colliculi

Question 23

superior colliculi

Answer 23

visual attention, tracking objects, focusing

Question 24

inferior colliculi

Answer 24

relay from inner ear, reflexive response to sound

Question 25

___ exits midbrain through interpeduncular fossa

Answer 25

CN III

Question 26

___ exits midbrain dorsally below inferior colliculus

Answer 26

CN IV