Blood supply of the B B BRAIN Flashcards
What does the anterior cerebral artery supply?
Medial surface of: primary motor and sensory cortices
-Leg and Foot
What does the middle cerebral artery supply?
lateral cortex: primary motor and sensory cortices
- broca’s and wernicke’s
- primary auditory cortex/ superotemporal lobe
- insula
What do the lenticulostriates supply?
- basal ganglia
- amygdala
- internal capsule
- anterior thalamus
What would a lesion to the lenticulostriates cause?
-involuntary movements (basal ganglia)
-head-to-toe motor and sensory deficits
including visual fields- contra half (internal capsule)
What does the anterior choroidal artery supply?
- hippocampus
- posterior limb of internal capsule
- optic chiasm and tract
What does the PICA supply?
- medial cerebellum
- cerebellar cortex
- dorsolateral medulla
What would a PICA infarction lead to?
- loss of facial pain
- hoarseness
- imbalance, vertigo - ipsilaterally
- *CN 9 and 10
- opposite sided protopathic loss for face and body
What does the anterior spinal artery supply?
ventral spinal cord - pain and temp
medial medulla - CN 12 nucleus
What do the pontine branches supply?
- pons:
- corticospinal tract
- CN 6 and 7 - anterior midbrain
- crus cerebri
What does the superior cerebellar artery supply?
superior cerebellum
Dorsolateral corner of rostral pons
What does the posterior cerebral artery supply?
- occipital lobe
- medial portions of parietal and temporal -memory
- thalamus
- midbrain
What would an infarct of the posterior cerebral artery cause?
- Unilateral:
- hemianopia and alexia - Bilateral:
blindness, memory loss, sensory loss
coma and death
What do the posterior choroidals supply?
midbrain
What does the posterior communicating arteries supply?
- anterior midbrain
- crus cerebri
- thalamus
What would an infarct of the posterior communicating arteries cause?
- paresis
- coma
- death
What would an AICA infarct cause?
- ipsi cerebellar signs
- ipsi hearing loss
- ipsi loss of pain and temperature on face
- facial paralysis
**CN 7 and 8
What would a superior cerebellar infarct cause?
ipsilateral cerebellar signs
contralateral pain and temperature loss
(same side protopathic loss for face and body)
Horner’s
What would an infarct of the anterior choroidal cause?
paralysis and sensory deficits
-visual field deficits
What would infarction of the pontine branches cause?
paralysis and sensory deficits of face and body
-diplopia -internal strabismus
***CN VI
What would an infarct of the anterior spinal artery cause?
ipsilateral tongue paralysis
contralateral sensory/paresis
blood supply for cranial nerve 12 nucleus?
anterior spinal artery
blood supply for cranial nerve 11 nuclei?
spinal arteries
blood supply for cranial nerve 10 nuclei?
PICA
blood supply for nucleus ambiguus (9&10)?
PICA
