Cerebral blood supply Flashcards

1
Q

بسم الله الرحمن الرحيم
_____________________
origin of blood supply of brain is ?

A

Subclavain giving vertebral arety
Common carotid giving ICA
=20% of COP

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2
Q

Anterior circulation by ?
Supplying?

A

Internal carotid artery
anterior 2/3 of the hemispheres + part of diecneplaton

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3
Q

Posteiror cirucoaton by?
supplying ?

A

Vertebral artery
Post 1/3 of hemispheres and Cerebellum and thalamus and
Brain stem and part of spinal cord

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4
Q

Mention parts of intenral carotid

A

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

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5
Q

Intenral cartotid formed at bifucration of CCA AT?

A

Upper border of Thyroid cartilage
Between C3 and C4

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6
Q

Carotid siphon -= ?

A

Cavernous + cerebral part

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7
Q

Latral to optic chiasma and opposite to anterior perofrated substance the Internal carotid artery gives ?

A

Anterior cerebral artery
Middle Cerebral artery

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8
Q

Mention Branches of intenral carotid artery ?

A

Anterior and Middle cerebral artery
Posterior communicating artery
Anterior choroidal artery
Opthalmic artery
Hypoheseal + ganglionics for trigeminal ganglia !

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9
Q

Anterior cerebreala artery one of 2 terminals of ICA
Course?
Joined with his fellow by?

A

Running in tha callosal sulcus till paieto-occipital sulcus
Joined with his felow by anterior communicating artery

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10
Q

Main blood supply of the Medial surface of hemisphers /

A

Anteriro cerebral artery

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11
Q

Anterior cerebral artery branhces mention

A

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
_______________________________
2-Central branches eneting the Anterior perforated substance supplyung genis and lower half of anterior limb of internal capsule
anteiro caudate ant lenfirom
_________________________
3-callosal branches

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12
Q

Dmage to Anterior cerebral artery casue?

A

Contralateral Monoplegia
Contralateral loss of sensation from leg
Affect Prefrontal cortex functions

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13
Q

Running in the lateral sulcus to reah suprolateral surface?

A

Middle cerebral artery

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14
Q

Middle cerebral artery branches?

A

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
____________________________-
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?

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15
Q

Artery of Cerebral Hge is ?

A

Charcot artery from central of Middle cerebral artery

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16
Q

Superolateral surface of hemisphers supplied by
the areas mainly supplied?

A

Middle cerebral artery cortical
Primary motor and sensory area
Broca’s + wernicks + Auditory
Heaing centers
Indsula !

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17
Q

oCCLUSON of Middle cerebral artery leads to ?

A

Contra lateral upper limb monoplegia and sensory loss
from face and arm and hand
Aphasia if in dominant hemisphers
Hearing is Weakened

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18
Q

Posterior communicating artery joins?

A

Posteiror cerebral artery

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19
Q

Enter inferior horn of lateran ventricle to from Choridal pleux ?

A

Ant choriodal artery from ICA

20
Q

Tail of caudate supplied by?

A

Anterior Choroidal artery

21
Q

Sublentifrom
Retrolentifrom of internal capsule
Amygdlois nuclues supplied by?

A

Anteiror choridal
artery
Anteiror choridal artery
Anterior choroidal artery

22
Q

Orgigin of Veterbral artery ?

A

First part of subclavian artery

23
Q

Passing in foramen transversum from C6 TO C1 ?

A

vertebral artery

24
Q

Vetrebral artery passes mdially on groove on posterior arch of ,………
entering cranial cavity by passing through foramen magnum on each side of medull joining it fellow to from .,,,,,,,,,?

A

Atlas
____________
Basilar

25
Q

Y shaped artery to supply spinal cord and medulla

A

Anterior spinal arery formed by union of 2 branches of 2 vertebral arteries

26
Q

Mention branhces of Vertebral artery

A

Anterior spinal artery
posteiro spinal artery
Post inferior cerebellar artery
________________
Medullary brances indeed!

27
Q

Lateral medulla supplied by? also supplying?

A

Post inferior cerbellar artery
from its name supplying?
Post of inferiro surfacce of cerebellum

28
Q

Origin of posterior spinal artery ?

A

Vertebral artery and may!
Posteiror inferior cerebellar artert

29
Q

Running upward in middle of Ventral surface of pons it is ?

A

Basialr artery

30
Q

Mention Branches of Basilar artery

A

-Anterior inferior cerebellar artery
-Pontine arteries
-Superir cerbellar artery
-Posterior Cerebral artery
-Internal auditoy or Labrinthal artery may from anterior inferior cerebellar artery

31
Q

Describe blood supply of cerebellum

A

-Superior cerebellar artery from basilar also supplying superor cerebellar peduncle
-Anterior Inferiro Cerebellar artey from basillar also supplying middle cerebellar peducle
-Posterior inferior Cerebellar artery from Vertebral supplying the Inferior cerebellar peduncle

32
Q

Choroid pleux of 4th ventricle is formed by ?

A

Posterio inferior cerebellar artery of vertebral

33
Q

Uncus ( smell area) supplied by ?

A

Middle and
Posterior
CEREBAL ARTERY

34
Q

Posterior cerebral artery is
Terminal branch of …….
turns aroudn ,,,,,,,, to rach ,,,,,surface of brain where it divides into brs running in the ,,,,,,,,, and,,,,,,,sucli

A

Basiliar
Cerebellar peduncle
Tentorial
_______________
Paireto-occipital
Clacrine

35
Q

Mention branche of the Posteiro cerebral artery

A

Cortical branches :
lateral surface: occipital + lower inch area
Medial surface: occipital + tempral lobe and splenium
inferior surface: all tentroial surface except temporal pole by Middle one
__________________________
Central Branches:
Medial pirecieng poster perforated substance to anter thalamus and hypothalamus
Latral to post thalamus + epi and methalamus
____________________________
posteiro choridal artery : to Choroids of Lateral and third ventricles

36
Q

Contralateal homonyomus hemianopia with sparing Macula if ….occluded ?

A

PCA
/also memory loss of tempral lobe affectedf

37
Q

Why macula is spared in PCA occlusion ?

A

Due to anastomsis with MCA

38
Q

Circle of willis in interpedunclar fossa

surrounding …….and…….and……….
Formed of ?

A

Optic chiasmas
tuber cinerum
mamillary body
___________________
ICA- anteriore cerebral -anterior communicating -anterior cerebral -ICA-posterior communicating - posteior cerebral - posterior cerebral-postetrito communicating-ICA!

39
Q

Circle of willis =

A

Anatsomsis between
Carotid and Vestibulo-Basilar systems .

40
Q

Anatomical and clincal imp of cricles of willis
/

A

-Communcation between areteiral supply of 2 hemishpers
-Communication between 2 systems
-SO Equlaization of pressure
-Collateral circlation
-Common site for arterail aneyrusm

41
Q

Mention structues passing in lateral sulcus

A

Superifical and deep middle cerebral veins
Middle cerebral arteries

42
Q

Superifical cerebral veins mention

A

superifical superior cerebral vein draisning into SSS
Superfifical inferior cerebral veins draisning into
if orbital sss in tentorial Transver
___________________
superifical middle cerebral vein in lateral sulcus into cavernous sinus having 2 anstomis
superior anstomtic with Superior sagitta sinus Vein of trolad
Inferiro anstomiss with Transceres sinus vein of labbe

43
Q

Basal vein tributaris and draingae?

A

BASAL VEIN = DAS
Deep middle cerebral + Anteror cerebral + Stirate Vein
2 basal veins drains into Grat cerebral vein of Galen

44
Q

dESCRIBE DEEP VENOUS DRAINAGE OF brain

A

-Thalamostiate vein + choroidal vein = internal cerebral vein
-2 intetnal cerebral vein unnion = Great cerebral vein of galen
-Great cerebarl vein with Inferior sagital sinus form STRAIGHT SINUS

45
Q

الحمدلله رب العالمين

A