blood supply of the central nervous system

• anterior cerebral arteries

• middle cerebral arteries

• posterior cerebral arteries

• internal carotid arteries

• vertebral arteries

vertebral artery

internal carotid artery

carotid canal in petrous temporal bone

cavernous sinus

anterior clinoid process

anterior and middle cerebral arteries

middle cerebral artery

anterior cerebral artery

internal carotid artery

the corpus callosum

medial aspect of the frontal and parietal lobes as far back as the parieto-occipital sulcus and a small part of the adjacent lateral surface

corpus callosum

anterior cerebral artery

laterally into lateral sulcus

most of the lateral surface except the upper periphery of the hemisphere the inferior surface of the frontal lobe and the insula

middle cerebral artery

lateral sulcus

• ophthalmic artery

• anterior choroidal artery

• posterior communicating artery

orbit

choroid plexus of lateral ventricle

posterior cerebral artery

foramen magnum

basilar artery

basilar artery

pons

vertebral artery

• anterior spinal artery

• posterior spinal artery

• posterior inferior cerebellar artery

union of branches from both vertebral arteries

infront of medulla

spinal cord

spinal cord

the posterolateral part of the medulla, the cerebellum

• anterior inferior cerebellar artery

• pontine branches

• labyrinthine artery

• superior cerebellar artery

• posterior cerebral arteries

cerebral peduncles

• medial surface of the occipital lobe

• inferior surfaces of the occipital and temporal lobes and adjacent lateral surface

• contralateral hemiparesis and hemisensory loss of leg and foot

• personality changes

• contralateral hemiparesis and hemisensory loss of face and arm

• aphasia

• impairment of memory

• blindness

anastomotic ring in interpeduncular fossa around the optic chiasma and the pituitary gland

anastomosis between internal carotid and vertebral system of arteries

• 2 internal carotid arteries

• 2 anterior cerebral arteries

• 2 posterior cerebral arteries

superficial and deep

• superficial middle cerebral vein

• superior cerebral veins

• inferior cerebral veins

• anterior cerebral vein

• deep middle cerebral vein

• basal vein

• great cerebral vein of galen

• internal cerebral vein

• straight sinus

• anterior spinal artery

• posterior spinal arteries

• spinal arteries

both vertebral arteries

posterior inferior cerebellar arteries

branches passing through intervertebral foramina from segmental arteries particularly in lumbar region

internal vertebral venous plexus of veins

internal vertebral venous plexus of veins extends along whole length of spinal cord