Cerebral Circulation Basics
What are the two main types of cerebral circulation?
What is anterior and posterior circulation
Which artery supplies the medial surface of the brain?
What is anterior cerebral artery (ACA)
Weakness of the contralateral face and arm is most associated with which artery?
What is MCA
What structure carries signals from the retina to the brain first?
What is optic nerve (CNII)
Loss of vision in one eye indicates damage where?
What is optic nerve (CNII)
Which arteries form the posterior circulation?
What is vertebral arteries
What is middle cerebral artery (MCA)
Broca's aphasia is typically caused by infarct in which MCA division?
What is left MCA superior division
Where do nasal retinal fibers cross?
What is optic chiasm
What is optic chiasm
What major structure is formed when the vertebral arteries join?
What is basilar artery
What is posterior cerebral artery (PCA)
Wernicke's aphasia is associated with damage to which area?
What is left MCA inferior division
What structure in the thalamus relays visual information?
What is lateral geniculate nucleus (LGN)
Homonymous visual field loss suggests a lesion where?
What is retrochiasmal pathway
What is the function of Circle of Willis?
What is provides collateral blood flow (anastomotic ring)
What are the two main divisons of the MCA?
What is superior and inferior divisions
What deficit is seen in ACA infarcts affecting the lower extremity?
What is contralateral leg weakness
What is the function of optic radiations?
What is carry visual information from LGN to visual cortex
A lesion in Meyer's loop causes what visual deficit?
What is contralateral superior quadrantanopia
What are the two terminal branches of the internal carotid artery?
What is anterior cerebral artery (ACA) and middle cerebral artery (MCA)
Which artery supplies deep brain structures like the basal ganglia and internal capsule?
What is lenticulostriate arteries
What visual deficit is caused by a PCA infarct?
What is homonymous hemianopia
What is special about how the retina processes images?
What is image is inverted and reversed
A lesion in the parietal lobe causes what type of visual loss?
What is contralateral inferior quadrantanopia