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brain receives its blood supply from
anterior cerebral arteries
middle cerebral arteries
posterior cerebral arteries
cerebral arteries arise from
internal carotid arteries
vertebral arteries
A
vertebral artery
B
internal carotid artery
internal carotid artery enters cranial cavity through
carotid canal in petrous temporal bone
internal carotid artery traverses the
cavernous sinus
internal carotid artery pierces the roof of the cavernous sinus near the
anterior clinoid process
internal carotid artery divides into
anterior and middle cerebral arteries
A
middle cerebral artery
B
anterior cerebral artery
C
internal carotid artery
anterior cerebral artery passes above
the corpus callosum
anterior cerebral artery supplies the
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
A
corpus callosum
B
anterior cerebral artery
anterior cerebral artery passes
laterally into lateral sulcus
anterior cerebral artery supplies
most of the lateral surface except the upper periphery of the hemisphere the inferior surface of the frontal lobe and the insula
A
middle cerebral artery
B
lateral sulcus
other branches of the internal carotid artery
ophthalmic artery
anterior choroidal artery
posterior communicating artery
ophthalmic artery supplies
orbit
anterior choroidal artery supplies
choroid plexus of lateral ventricle
posterior communicating artery supplies
posterior cerebral artery
vertebral artery enters cranial cavity through
foramen magnum
vertebral artery of each side to form
basilar artery
A
basilar artery
B
pons
C
vertebral artery
branches of vertebral artery
anterior spinal artery
posterior spinal artery
posterior inferior cerebellar artery
anterior spinal artery is formed by
union of branches from both vertebral arteries
anterior spinal artery descend
infront of medulla
anterior spinal artery supplies
spinal cord
posterior spinal arteries descend to
spinal cord
posterior inferior cerebellar artery supplies
the posterolateral part of the medulla, the cerebellum
branches of the basilar artery
anterior inferior cerebellar artery
pontine branches
labyrinthine artery
superior cerebellar artery
posterior cerebral arteries
posterior cerebral artery passes around
cerebral peduncles
posterior cerebral artery supplies
medial surface of the occipital lobe
inferior surfaces of the occipital and temporal lobes and adjacent lateral surface
effect of occlusion of anterior cerebral artery
contralateral hemiparesis and hemisensory loss of leg and foot
personality changes
effect of occlusion of middle cerebral artery
contralateral hemiparesis and hemisensory loss of face and arm
aphasia
effect of occlusion of posterior cerebral artery
impairment of memory
blindness
circle of willis is
anastomotic ring in interpeduncular fossa around the optic chiasma and the pituitary gland
circle of willis provides
anastomosis between internal carotid and vertebral system of arteries
circle of willis is formed by
2 internal carotid arteries
2 anterior cerebral arteries
2 posterior cerebral arteries
venous drainage of the brain is divided into
superficial and deep
superficial group of veins of brain
superficial middle cerebral vein
superior cerebral veins
inferior cerebral veins
deep group of veins
anterior cerebral vein
deep middle cerebral vein
basal vein
great cerebral vein of galen
internal cerebral vein
straight sinus
blood supply of the spinal cord
anterior spinal artery
posterior spinal arteries
spinal arteries
anterior spinal artery is derived from
both vertebral arteries
posterior spinal arteries are derived from
posterior inferior cerebellar arteries
spinal arteries are reinforced by
branches passing through intervertebral foramina from segmental arteries particularly in lumbar region
venous drainage of spinal cord
internal vertebral venous plexus of veins
what is a route for spreading metastasis up to the brain
internal vertebral venous plexus of veins extends along whole length of spinal cord