Brainstem Stoke

Question 1

Level of CN III:

Answer 1

rostral midbrain

Question 2

Level of CN IV:

Answer 2

caudal midbrain

Question 3

Level of CN V:

Answer 3

rostral pons

Question 4

Level of CN VI:

Answer 4

caudal pons

Question 5

Level of CN VII:

Answer 5

caudal pons

Question 6

Level of CN VIII:

Answer 6

caudal pons and rostral medulla

Question 7

Level of CN IX:

Answer 7

rostral medulla

Question 8

Level of CN X:

Answer 8

rostral medulla

Question 9

Level of CN XI:

Answer 9

rostral medulla

Question 10

Level of CN XII:

Answer 10

rostral medulla

Question 11

Tongue deviation and dysphagia are symptoms associated with which broad level?

Answer 11

medulla

Question 12

Lateral gaze and facial palsy are associated with which broad level?

Answer 12

pons

Question 13

Loss of pupillary relax is associated with which broad level?

Answer 13

midbrain

Question 14

Which arteries supply the Midbrain?

Answer 14

PCA, SCA, basilar

Question 15

Which Arteries supply the pons?

Answer 15

Basilar, AICA

Question 16

Which arteries supply the Medulla?

Answer 16

vertebral, PICA

Question 17

Which arteries supply the cerebellum?

Answer 17

PICA, AICA, SCA

Question 18

What parts of the brain does the vertebral artery supply?

Answer 18

The medulla

Question 19

What parts of the brain does the PICA supply?

Answer 19

Cb, medulla

Question 20

What parts of the brain does the AICA supply?

Answer 20

Cb, Pons

Question 21

What parts of the brain does the Basilar artery supply?

Answer 21

Pons and Midbrain

Question 22

What parts of the brain does the SCA supply?

Answer 22

Cb, midbrain

Question 23

What parts of the brain does the PCA supply?

Answer 23

Midbrain

Question 24

What is another name for Lateral Medullary Syndrome?

Answer 24

Wallenberg’s syndrome

Question 25

What is Wallenberg’s syndrome?

Answer 25

Stroke involving dorsolateral area of the upper medulla

Question 26

What areas are involved in Wallenberg’s syndrome?

Answer 26

Inferior Cb peduncles
Vestibular nuclei
Fibers of CN IX and X
Spinal nucleus/tract of V
spinothalamic tract
sympathetic pathways

Question 27

What does Medial Medullary syndrome involve?

Answer 27

Pyramid
medial lemniscus
CN XII

Question 28

Signs of Medial Medullary Syndrome?

Answer 28

Contralateral body weakness
Loss of contralateral discriminative touch/conscious proprioception
Ipsilateral tongue weakness
diminished gag reflex

Question 29

What is locked in syndrome?

Answer 29

Bilateral ventral brainstem strokes of pons and perhaps medulla

Question 30

Why is there no voluntary body movement?

Answer 30

Bilateral cortico-spinal involvement

Question 31

What does pontocerebellar Angle Syndrome involve?

Answer 31

CN VIII
Cerebellum
CN VII

Question 32

What does pontocerebellar Angle syndrome result in?

Answer 32

Ipsilateral vertigo, dizziness, tinnitus
Ipsilateral CB signs
Ipsilateral Facial paralysis

Question 33

What usually causes pontocerebellar angle syndrome?

Answer 33

Tumor of CN VIII aacoustic schwanoma

Question 34

What do Basal Pontine syndromes result in?

Answer 34

Contralateral Hemiplegia
ipsilateral internal strabismus, facial paralysis or loss of facial sensation
contralateral loss of discriminative touch and proprioception

Question 35

What areas are affected with Basal Pontine Syndromes?

Answer 35

corticospinal fibers in basilar pons
cranial nerve in the area (abducens, facial and/or trigeminal)
may involve medial lemniscus

Question 36

What does Weber’s syndrome involve?

Answer 36

CN III

portions of the crus cerebri

Question 37

What does Webers syndrome result in?

Answer 37

Esternal strabismus, ptosis, pupillary dialation

contra lateral hemiplegia and paralysis of the contra lateral lower face lower