Cerebral Arteries Flashcards
What is the main supply for the anterior, posterior, and middle cerebral arteries
Internal carotid artery
Deficits seen if there is a disruption in the blood flow of the internal carotid artery
- contralateral hemiplegia and hemi-sensory disturbance
- global aphasia (if dominant side)
- mentally slow
- contralateral homonymous hemianopia
- partial Horner’s syndrome
- gaze palsy (eyes to opposite side)
Deficits seen if there is a disruption in the blood flow of the anterior cerebral artery
- weakness and sensory loss of contralateral limbs
- self-care problems
- emotionally labile
Deficits seen if there is a disruption in the blood flow of the Middle cerebral artery
- contralateral hemiplegia, hemi-sensory loss, hemianopia
- contralateral neglect
- aphasia (impaired language ability) if on dominant side
- apraxia (disorder of motor planning
- can’t carry out purposeful movements)
- impaired hearing
- difficulty dressing
- may also produce motor speech dysfunction (Broca’s area)
Two vertebral arteries join to form the ____
basilar artery
What does the posterior cerebral artery supply
the occipital lobes
Deficits seen if there is a disruption in the blood flow of the posteroir cerebral artery
- vision problems, CN III palsy, contralateral hemiplegia, chorea (abnormal involuntary mvmts, looks like dancing)
- hemiballism (involuntary flinging movements of extremities)
- hemi-sensory impairment
- contralateral homonymous hemianopia
- difficulty with naming and colors
What arteries supply the cerebellum
Superior cerebellar artery
Anterior Inferior cerebellar artery
Posterior inferior cerebellar artery
What deficits are seen if there is a disruption in the blood flow of the Posterior cerebellar artery
- limb ataxia
- Horner’s syndrome (droopy eyelid, red face)
- contralateral sensory loss
What deficits are seen if there is a disruption in the blood flow of the anterior inferior cerebellar artery
- ipsilateral limp ataxia
- ipsilateral Horner’s
- sensory loss
- facial weakness
- paralysis of lateral gaze
- contralateral sensory loss of limbs and trunk
What deficits are seen if there is a disruption in the blood flow of the posterior inferior cerebellar artery
- dysarthria (poor articulation while speaking d/t motor issues)
- ipsilateral limb ataxia
- vertigo
- nystagmus
- ipsilateral hornets
- sensory loss (p and temp) of face
- pharyngeal and laryngeal paralysis
- contralateral sensory loss (p and temp) of trunk
- visual s&s (paralysis of vertical eye movements and decreased pupillary light reflex)
Where is Broca’s area located
Left frontal lobe
What are the deficits seen in Broca’s aphasia? What is retained?
- problems with articulation of speech (dysarthria)
- can understand speech fine
Where is Wernicke’s area located?
Left temporal lobe
What are the deficits seen in Wernicke’s aphasia? What is retained?
- problems with understanding speech
- will speak normally but often doesn’t make sense - patient feels it does
