Blood Supply

Question 1

Anterior cerebral arteries- loss

Answer 1

Contralateral LE sensory and motor loss

Question 2

Middle Cerebral artery- supplies

Answer 2

Lateral hemispheres- frontal,parietal,temporal

Question 3

Middle Cerebral artery- loss

Answer 3

Contralateral motor and sensory to face, UE and trunk

Question 4

Anterior spinal artery- supplies

Answer 4

Anteromedial medulla, ant. Spinal cord

Question 5

Anterior Spinal cord artery- loss

Answer 5

Inferior alternating hemiplegia- Medial medullary syndrome

1. Lateral corticospinal fibers- contralateral hemiplegia of limbs
2. Medial lemniscus- contralateral loss of proprioception, vibration sense, discriminative touch
3. Hypoglossal nucleus- ipsilateral deviation/paralysis of tongue

Question 6

Posterior Spinal artery- supplies

Answer 6

Posterior/caudal medulla, post. Spinal cord

Question 7

Posterior spinal artery- loss

Answer 7

Lateral medullary syndrome

1. Spinothalamic tract- contralateral pain/temp
2. Spinal trigeminal- ipsilateral pain/temp to face
3. Vestibular nuclei- vertigo, nausea, vomiting
4. Horner’s- ptosis, miosis (pupil constriction), decreased sweating

Question 8

Basilar artery- supplies, branches

Answer 8

Pons, cerebral peduncles

1. Paramedian
2. Short circumferential
3. Long circumferential

Question 9

Paramedian branches of basilar supply

Answer 9

Medial pons

Question 10

Paramedian branch of basilar loss

Answer 10

Middle alternating hemiplegia

1. Corticospinal tract- contralateral limb hemiplegia
2. Medial lemniscus- contralateral proprioception, vibration, tactile discrimination
3. Abducens- Ipsilateral strabismus

Question 11

Long circumferential branch of basilar- loss

Answer 11

Lateral pontine syndrome

1. Vestibular/cochlear nuc.- vertigo, nausea, nystagmus, deafness, tinnitus, vomiting
2. Spinal trigeminal nuc.- contralateral pain/temp for face
3. Facial nuclei- ipsilateral face muscles
4. Trigeminal motor nuclei- masticatory muscles

Question 12

Posterior cerebral artery supplies

Answer 12

Midbrain

Question 13

Posterior cerebral loss

Answer 13

Superior alternating hemiplegia

1. Contralateral hemiplegia of limbs, face, tongue
2. Ipsilateral eye motor- oculomotor nerve

Question 14

Arteries that supply midbrain

Answer 14

Posterior cerebral
Superior cerebellar
Posterior communicating

Question 15

Anterior cerebral arteries- supply

Answer 15

Medial cerebral hemispheres, rostral to parieto-occipital sulcus