CV Signs and Symptoms/Strokes

Question 1

What regions of the brain does the ACA supply?

Answer 1

Medial frontal lobe, medial parietal lobe

Question 2

What deficits do you see if ACA is occluded?

Answer 2

Leg weakness, loss of sensation in legs, urinary incontinence, mood dysregulation

Question 3

What regions of the brain does the MCA supply?

Answer 3

Lateral frontal, parietal, and superior temporal lobes, medial anterior temporal lobe

Question 4

What deficits do you see if you MCA is occluded?

Answer 4

Hemiparesis of face/arm/trunk, hemisensory loss of face/arm/trunk, aphasia (left), hemineglect (right), homonymous hemianopsia

Question 5

What regions of the brain do the medial striates supply?

Answer 5

ALIC, caudate

Question 6

What deficits do you see if medial striates are occluded?

Answer 6

Frontal ataxia (Burns ataxia)-lesion in fronto pontine produes difficulty in intiating movements such as walking, although strength and coordination are normal

Question 7

What regions of the brain do the lateral striates supply?

Answer 7

Genu of IC and PLIC, basal ganglia

Question 8

What deficits do you see if lateral striates are occluded?

Answer 8

Hemiparesis of fae/arm/leg

Question 9

What regions of the brain do the thalamogeniculates supply?

Answer 9

Thalamus

Question 10

What deficits would you see if thalamogeniculates are occluded?

Answer 10

Thalamic pain: Acute-numbness, chronic-severe dyasthesia

Question 11

What region of the brain does the anterior spinal artery supply?

Answer 11

Medial medulla

Question 12

If anterior spinal artery is occluded in the brain, what tracts and cranial nerves would be affected? What findings would you see?

Answer 12

CST/pyramids, DC/medial lemniscus; CN XII —>

Contra hemiparesis, contra light touch, ipsi tongue weakness

Question 13

What regions NOT IN THE BRAIN does the anterior spinal artery supply?

Answer 13

Medial/anterior 2/3rds of spinal cord

Question 14

If anterior spinal artery is occluded NOT IN THE BRAIN, what cranial nerves and long tracts would be affected? What findings would you see?

Answer 14

No cranial nerves, CST, STT -»>

quadriplegia, loss of pain/temp

Question 15

What region of the brain does the vertebral artery supply?

Answer 15

Lateral medulla

Question 16

If vertebral artery is occluded, what cranial nerves/tracts would be affected? What findings?

Answer 16

No cranial nerves, CST/pyramids, STT -»

contra hemiplegia, contra loss of pain/temp

Question 17

What regions of the brain does the PICA supply?

Answer 17

Lateral medulla, inferior cerebellum, choroids

Question 18

If PICA is occluded, what cranial nerves/tracts are affected? Findings?

Answer 18

Descending nucleus of V, IX, X, XI, STT, desc. sympathetic, spinocerebellar, olivocerebellar –»>

WALLENBERG’s syndrome! - vertigo, ipsi ataxia, dysmetria, dysarthria, ipsi Horner’s, contra loss of pain and temp

Question 19

What regions of the brain does the basilar artery supply?

Answer 19

Medial pons, medial midbrain

Question 20

If basilar artery is occluded, what cranial nerves/tracts are affected? Findings?

Answer 20

CN VI, CST, medial lemniscus ->

Ipsli loss of eye abduction, quadriplegia, death from respiratory compromise, locked in syndrome

Question 21

What regions of the brain does the AICA supply?

Answer 21

Lateral medullar, lateral pons, cerebellum

Question 22

If AICA is occluded, what cranial nerves/tracts are affected? Findings?

Answer 22

CN V, VII, VIII, STT ->

Vertigo, ipsi deafness, ipsi facial weakness, ataxia, contra pain/temp

Question 23

What regions of the brain does the SCA supply?

Answer 23

Lateral pons, lateral midbrain, middle and superior cerebellar peduncles

Question 24

If SCA is occluded, what cranial nerves/tracts would be affected? Findings?

Answer 24

CN V, VIII, STT, descending sympathetic -»

ipsi ataxia, N/V (nausea/vomiting), tremor ipsi upper extremity, contra pain, ipsi deafness, ipsi Horner’s

Question 25

What regions of brain does PCA supply?

Answer 25

Superior midbrian, also occipital lobes, inferior and medial temporal lobes

Question 26

If PCA is occluded, what cranial nerves/tracts would be affected? Findings?

Answer 26

CN III, CST ->

Contra hemiparesis, eye down and out, cortical blindness, alexia

Question 27

Wallenberg’s syndrome

Answer 27

PICA stroke, the most common site for thrombus or embolis in brainstem; can be caused by chiropractic manipulation of the neck

Vertigo, ipsi ataxia, dysmetria, dysarthria, ipsi Horner’s contra loss of pain/temp