Cerebral Circulation Flashcards
There are ___ branches of the internal carotid artery
4
The cervical part of the internal carotid goes up to the ____ and has no branches.
skull
The petrous part of the internal carotid is inside the ____ canal
carotid
The cavernous part of the internal carotid is located ____the petrous part and is located within the _____sinus.
outside, cavernous
The cerebral part of the internal carotid is located ____ the cavernous sinus, and has ____ branches.
after, several
The inferior hypophyseal artery comes off of the _____ part of the inernal carotid and goes to the ____ part of the pituitary gland.
The inferior hypophyseal artery comes off of the cavernous part of the inernal carotid and goes to the posterior part of the pituitary gland.
The cerebral part of the internal carotid has ___ branches
6
Opthalmic, posterior communicating, anterior choroidal, superior hypophyseal, middle cerebral, and anterio cerebral are branches of what part of the internal carotid artery?
cerebral
The anterior choroidal artery comes off of the circle of willis ____ and goes ____towards the ____ lobe.
The anterior choroidal artery comes off of the circle of willis medially and goes posteriorly towards the temporal lobe.
The anterior choroidal artery supplies ___ structures
six
The medial temporal lobe (uncus, hippocampus, amygdala), basal ganglia (tail of caudate, globus pallidus), inferior part of posterior limb of internal capsule, optic tract, lateral geniculate nucleus, and cerebral peduncle are supplied by what artery?
anterior choroidal artery
The anterior cerebral artery has ___ segments
5
A1 segment of the anterior cerebral artery comes off of the internal carotid and goes to the ____ _____artery.
A1 segment of the anterior cerebral artery comes off of the internal carotid and goes to the anterior communicating artery.
A2 segment of the anterior cerebral artery is the ______part after the anterior communicating artery before it loops around the ____ ____
A2 segment of the anterior cerebral artery is the inferior part after the anterior communicating artery before it loops around the corpus callosum.
A3 segment of the anterior cerebral artery is located at the ____ edge of the corpus callosum.
A3 segment of the anterior cerebral artery is located at the anterior edge of the corpus callosum.
A4 and A5 segments of the anterior cerebral artery are the ___ parts.
superior
The medial striate artery/recurrent artery of Huebner comes off the anterior cerebral artery and joins the other arteries coming off of the ____cerebral artery.
The medial striate artery/recurrent artery of Huebner comes off the anterior cerebral artery and joins the other arteries coming off of the middle cerebral artery.
The anterior cerebral artery supplies blood to the ___ parts of the cerebral hemispheres.
superior
the ___ ___ artery supplies the inferior head of the caudate nucleus, the anterior limb of the internal capsule, and the putamen
medial striate artery
The middle cerebral artery has ___ segments
4
The M1 segment of the middle cerebral artery goes towards the ____ and bifurcates
uncus
The M2 segment of the middle cerebral artery goes along the ____ ____
insular cortex
The m3 segment of the middle cerebral artery goes to the ____
opercula
The lenticulostriate arteries of the middle cerebral artery supply the ___ ___
basal ganglia
The superior division of the middle cerebral artery supplies ____of the central sulcus and anteriorly
left
The inferior division of the middle cerebral artery supplies the _____temporal lobe and ____ to the central sulcus.
superior, posterior
The posterior cerebral artery supplies the:
- ____and ____temporal lobe
- Occipital lobe
- Midbrain
- Thalamus
- Choroid plexus of _____and _____ ventricles
The posterior cerebral artery supplies the:
- Inferior and medial temporal lobe
- Occipital lobe
- Midbrain
- Thalamus
- Choroid plexus of lateral and third ventricles
The posterior cerebral artery has ___ segments
4
The p2 segment of the posterior cerebral artery has temporal branches that go _____ and _____ along the temporal lobe.
The p2 segment of the posterior cerebral artery has temporal branches that go laterally and superiorly along the temporal lobe.
Watershed zones get the ____ amount of blood flow compared to other areas
least
The anteromedial group of perforating branches off of the circle of willis supplies the ___ ____ and ______
The anteromedial group of perforating branches off of the circle of willis supplies the optic chiasm and hypothalamus
The anterolateral group of perforating branches of the circle of willis
- Includes lenticulostriate
- Enters ____ perforated substance
- Supplies ______ of hemisphere (basal ganglia)
The anterolateral group of perforating branches of the circle of willis
- Includes lenticulostriate
- Enters anterior perforated substance
- Supplies interior of hemisphere (basal ganglia)
The posteromedial group of perforating branches of circle of willis
Supplies ___ _____, middle/caudal hypothalamus, and thalamus
Enters_____perforated substance
The posteromedial group of perforating branches of circle of willis
Supplies crus cerebri, middle/caudal hypothalamus, and thalamus
Enters posterior perforated substance
The posterolateral group of perforating arteries of the circle of willis
Supplies thalamus and choroid plexus of ____and ____ventricles
The posterolateral group of perforating arteries of the circle of willis
Supplies thalamus and choroid plexus of lateral and third ventricles
The vertebral artery supplies the anterolateral _____.
The vertebral artery supplies the anterolateral medulla.
The vertebral artery has ___ segments
4
V1 segment of the vertebral artery is _____ insertion into the transverse foramina.
before
V2 segment of the vertebral artery is the ___part
cervical
V3 segment of the vertebral artery is when it enters the ___ ____.
foramen magnum
The V4 segment of the vertebral artery is the segment that comes after the foramen magnum but before the transition into the ____ artery
basilar
The posterior inferior cerebral artery (PICA) supplies:
- medial/inferior cerebellum, _____ medulla, and choroid plexus of _____ventricle
- ____ spinal arteries
The posterior inferior cerebral artery (PICA) supplies:
- medial/inferior cerebellum, lateral medulla, and choroid plexus of 4th ventricle
- Posterior spinal arteries
Anterior inferior cerebellar artery
•Supplies_____ medulla, choroid plexus exiting the _____ aperture, ___ _____ pons, _____ lateral cerebellum
Anterior inferior cerebellar artery
•Supplies posterolateral medulla, choroid plexus exiting the lateral aperture, lateral caudal pons, middle lateral cerebellum
The anterior inferior cerebellar artery, the labarynthine artery, the pontine arteries, and superior cerebellar artery are branches off of the ____ artery
basilar
- Labarynthine artery
- Enters ____acoustic meatus
internal
the pontine arteries supply the ____
pons
Superior cerebellar artery
•Supplies ____ pons and _____ cerebellum
Superior cerebellar artery
•Supplies rostral pons and superior cerebellum
The SCA takes care of the _____and ____ aspects of the cerebellum.
The SCA takes care of the vermis and medial aspects of the cerebellum.
The artery of adamkiewucs is an enlarged ___ ____artery that contributes to the ____ spinal artery
-if you lose this artery, you lose blood pressure going to the _____section of the spinal cord
The artery of adamkiewucs is an enlarged anterior medullary artery that contributes to the <strong>anterior </strong>spinal artery
-if you lose this artery, you lose blood pressure going to the inferior section of the spinal cord
The superior middle cerebral vein flows into the _____ sinus
cavernous
The superior anastomotic vein flows into the ___ ____ sinus
superior saggital
The inferior anastomotic vein flows into the ____ sinus
transverse
The ____ ___ vein receives blood from the thalamus and lateral ventricles.
internal cerebral
The ___ ___ vein receives blood from the orbital parts of the frontal lobe
anterior cerebral
___ vein dains the hypothalamus, midbrain, and temporal lobe
basal
the ____ vein and the ___ ___ vein combine to form the great cerebral vein
basal, internal cerebral
The deep ___ ___ vein supplies the insular cortex
deep middle cerebral vein
THe internal venous plexus is located within the ____ space
epidural
