Cerebral blood supply Flashcards
بسم الله الرحمن الرحيم
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origin of blood supply of brain is ?
Subclavain giving vertebral arety
Common carotid giving ICA
=20% of COP
Anterior circulation by ?
Supplying?
Internal carotid artery
anterior 2/3 of the hemispheres + part of diecneplaton
Posteiror cirucoaton by?
supplying ?
Vertebral artery
Post 1/3 of hemispheres and Cerebellum and thalamus and
Brain stem and part of spinal cord
Mention parts of intenral carotid
Cervical in neck in carotid sheath
Petrous in carotid canal
Cavernous Running in the floor then piercing the Roof
Cerebral passes backward medial to antreiro clenoid process
Intenral cartotid formed at bifucration of CCA AT?
Upper border of Thyroid cartilage
Between C3 and C4
Carotid siphon -= ?
Cavernous + cerebral part
Latral to optic chiasma and opposite to anterior perofrated substance the Internal carotid artery gives ?
Anterior cerebral artery
Middle Cerebral artery
Mention Branches of intenral carotid artery ?
Anterior and Middle cerebral artery
Posterior communicating artery
Anterior choroidal artery
Opthalmic artery
Hypoheseal + ganglionics for trigeminal ganglia !
Anterior cerebreala artery one of 2 terminals of ICA
Course?
Joined with his fellow by?
Running in tha callosal sulcus till paieto-occipital sulcus
Joined with his felow by anterior communicating artery
Main blood supply of the Medial surface of hemisphers /
Anteriro cerebral artery
Anterior cerebral artery branhces mention
1-Cortical Branches :-
-Medial surface frontal and pariteal till parietoociipial sulcus
-Area 1 inch width in the supieror medial side of lateral surface of hemisphers
-Medial 1/3 of Orbital part of inferiro surface
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2-Central branches eneting the Anterior perforated substance supplyung genis and lower half of anterior limb of internal capsule
anteiro caudate ant lenfirom
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3-callosal branches
Dmage to Anterior cerebral artery casue?
Contralateral Monoplegia
Contralateral loss of sensation from leg
Affect Prefrontal cortex functions
Running in the lateral sulcus to reah suprolateral surface?
Middle cerebral artery
Middle cerebral artery branches?
Cortical :
supplying the lateral surface of hemisphers except for upper and lower inch and occipital boe
supplying laterla 2/3 of oribtal part of inferior surface+ Temporal pole
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central giving Anterolateral set (lateral stirate artery ) piereve anterior perforating artery giving
Post caudate and lentiform
and The upper half of anterior and post limbs
*gives charoct artery of Cerebral Hge?
Artery of Cerebral Hge is ?
Charcot artery from central of Middle cerebral artery
Superolateral surface of hemisphers supplied by
the areas mainly supplied?
Middle cerebral artery cortical
Primary motor and sensory area
Broca’s + wernicks + Auditory
Heaing centers
Indsula !
oCCLUSON of Middle cerebral artery leads to ?
Contra lateral upper limb monoplegia and sensory loss
from face and arm and hand
Aphasia if in dominant hemisphers
Hearing is Weakened
Posterior communicating artery joins?
Posteiror cerebral artery