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7 Cards in this Set

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  • Back
What is the territory supplied by the basillar artery in the midbrain and what are the symptoms of occlusion?
- Midline corticospinal and corticobulbar tracts
- Reticular formation
- Oculomotor nuclei

Locked in with ocular palsy syndrome –
• sudden onset vomiting
• transient loss consciousness
• acute onset quadriplegia
• bilateral facial paralysis
• loss of voluntary eye movements
What is the territory supplied by the basillar artery in the pons and what are the symptoms of occlusion?
- Midline CsT and CbT
- Reticular formation

Locked in syndrome without ocular palsy – still have voluntary eye movements as oculomotor nuclei spared
What is the territory supplied by the superior cerebellar artery and what are the symptoms of occlusion?
- Middle and/or superior cerebellar peduncles

• Ipsilateral cerebellar ataxias
• nausea and vomiting
• slurred speech
• loss of pain + temp on contralateral body
• partial deafness
• ipsilateral Horner’s Syndrome
What is the territory supplied by the anterior inferior cerebellar artery and what are the symptoms of occlusion?
- Anterior portions of inferior cerebellum
- Parts of caudal pons

• Vertigo, vomiting, falling to one side,
• horizontal nystagmus
• absent sensation on ipsilateral face
• ipsilateral facial paralysis
• ipsilateral hearing loss
What is the territory supplied by the posterior inferior cerebellar artery and what are the symptoms of occlusion?
- Lateral medulla
- Part of cerebellum

Lateral Medullary Syndrome –
• sudden onset nausea, vomiting and vertigo (vestibular nuclei)
• fall to affected side (lateral pulsion)
• double vision
• down beat nystagmus
• decreased pain sensation to ipsilateral face (spinal nucleus of cranial nerve V)
• decreased pain and temp on contralateral body (spinal lemniscus – StT)
• ipsilateral limb incoordination (cerebellum)
• Horner’s syndrome (damage to descending sympathetic fibres close to spinal lemniscus)
• Dysphagia and Dysphonia (nucleus ambiguus)
What is the territory supplied by the vertebral artery and what are the symptoms of occlusion?
- Lateral medulla

• Ipsilateral pain and temp loss in face (spinal trigeminal nucleus)
• Ipsilateral facial pain (SpV)
• Contralateral pain and temp loss on body (StT)
• Ipsilateral ataxia (inferior olivary nucleus)
• Dysphagia and dysphonia (nucleus ambiguous)
• Horner’s Syndrome (sympathetic damage)
What is the territory supplied by the anterior spinal artery and what are the symptoms of occlusion?
- Pyramidal tract
- Medial lemniscus
- Hypoglossal nucleus

• Contralateral weakness of limbs (pyramidal tract)
• Contralateral sensory loss (DCT) – not pain and temp
• Ipsilateral tongue weakness (hypoglossal nucleus)