anatomy and pathophysiology Flashcards
Branches of aorta? Right and Left?
right brachiocephalic divides into right common carotid and right subclavian
left circulation comes right off of the aorta. Left common carotid and left subclavian
common carotid arteries bifurcate at which cervical level?
C3-4
Vascular supply to striatrum?
lateral striate branches (MCA)
Vascular supply to head of caudate?
recurrent artery of heubner (ACA)
Vascular supply to head of caudate, anteromedial portion?
anterior choroidal
Vascular supply to lateral globus pallidus?
lateral striate branches (MCA) and anterior choridoil
Vascular supply to medial globus pallidus
anterior choroidal and perforating branches(PCOM)
Vascular supply to anterior limb of IC
lateral striate branches (MCA) and medial striates (ACA)
Vascular supply to IC- genu
ICA branches and lateral striate brances (MCA)
Vascular supply to IC - posterior limb
lateral striate (MCA) and anterior choroidal
Vascular supply to anterior thalamus
anterior thalmoperforating branches
Vascular supply to medial thalamus
posterior thalmoperforating branches from P1 segment PCA and tip of basilar + posterior choroidal
Vascular supply to lateral thalmus
thalamogeniculate from P2 segment
PICA supplies?
inferolateral surface of cerebellum, inferior vermis and cerebellar tonsil, lateral medulla
AICA supplies?
inferior surface of cerebellum, flocculus, dentate nucleus, caudal pontine tegmentum
superior cerebellar supplies?
medial portion - superior cerebellar vermis
lateral portio- superior hemispheres and deep nuceli of superior medullary velum, lateral portion of upper pontine tegmentum
how many anterior spinal arteries?
one
how many posterior spinal arteries?
two
Which parts of spinal cord are at higher risk of ischemia?
thoracic and lumbar segments - fewer arteries
*t4-6 is the watershed zone
