brain - blood supply Flashcards
(26 cards)
CNS neurons are very dependent on ___ metabolism
aerobic
brain weighs __% of body weight but uses __% of the total cardiac output and consumes ___% of total available oxygen
2
15
20
blood supply to the brain is supplies by the ___ and ___ arteries
ICA
vertebral
ICA is one of the two terminal branches of the ___ ____ artery
common carotid
ICA has 4 pars
cervical
petrous
cavernous
cerebral
the cerebral part of the ICA gives off the ___ a which supplies the eye
opthalmic
ICA terminates by dividing into ___ and ___ cerebral arteries
anterior
middle
ICA anastomoses with the vertebral artery through the ___ ___ ___
circle of willis
anterior cerebral artery is one of the two terminal branches of the ____
ICA
anterior cerebral a supplies the medial surface of the ___ and ___ lobes as well as the adjoining strip of cortex along the medial edge of the ___ surface of these lobes
frontal
parietal
lateral
anterior cerebral a supplies portions of the ___ capsul and ___ ganglia
internal
basal
anterior cerebral a supplies the anterior / of the corpus collosum
4/5
middle cerebral a supplies the ___ and the lateral surface of the ___, ___, and ___ lones as well as the posterior portion of the ___ capsule and ____ ganglia
insula frontal partietal temporal internal basal
2 vertebral arteries enter the ___ ___ and unite at the caudal end of the ___ to form the ___ artery
foramen magnum
pons
basilar
basilar artery ends by dividing into the ___ ___ arteries at the superior end of the pons
posterior cerebral
basilar gives off 4 branches
superior cerebellar
pontine
labyrinthine
ant inf cerebrellar
post cerebral aa are the 2 terminal branches of the ___ a
basilar
post cerebral gives rise to 2 branches
brainstem
cortical
brainstem branch of the post cerebral a are named according to ___ __ ___
where they are
cortical branches of the post cerebral a arise as the PCA courses along he inferiomedial surface of the ___ lobe to reach the ___ lobe. supplies the ____
temporal
occipital
hippocampus
circle of willis is formed by the anastomosis of 5 aa
PCA post communicating ICA ant cerebral ant communicating
circle of willis is located at the base of the ___, encircling the ___ ___, infundibulum of the ____ gland, and the ___ bodies
brain
optic chiasma
pituitary gland
mamillary bodies
veins of the brain lie in the ___ space and pierce the ___ mater and memingeal layer of the ___ mater to drain into the ___ ___ ___
subarachnoid
arachnoid
dura
dural venous sinuses
epidural hematoma
build up of blood between the dura and the skull
