2 - Blood supply to the Brain (complete) Flashcards
What are the two primary blood vessels that supply the brain
internal carotid artery
vertebral artery
What is the path of the vertebral artery, from where it branches off of to its end
it branches off of the subclavian artery
travels through the T-foramen of C1-C6
Travels through the foramen magnum
The two combine to form the basilar artery
the basilar artery joins the cerebral arterial circle
What is the path of the internal carotid artery from where it branches off to its end
it branches off of the common carotid artery
travels through the carotid canal
turns into 4 branches
What are the 4 branches into which the internal carotid turns.
- opthalmic
- Posterior communicating
- Middle cerebral
- anterior cerebral
What are the 5 components of the circle of willis (cerebral arterial circle
- Posterior cerebral
- Posterior communicating
- Internal Carotid
- Anterior Cerebral
- Anterior communicating
What and where are the 4 dural septa
Falx Cerebri - between parietal hemispheres
Tentorium cerebelli - between cerebrum and cerebellum
Falx cerebelli - between cerebellar hemispheres
Diprhagma sellae - covers sella turcica
what and where are the 8 venous sinuses in the cranium
superior sagittal sinus (superior to longitudinal fissure
inferior sagittal sinus (inferior to longitudinal fissure
Straight sinus (connects those two ^ between the cerebellum and cerebrum
confluence of sinuses (internal occipital protuberance)
transverse sinus
sigmoid sinus
superior petrosal
inferior petrosal
what is the cavernous sinus
a large vein sinus that surrounds the sella turcica and receives blood from the opthalmic veins and drains into the superior and inferior petrosal sinuses
What runs through the cavernous sinus
Internal carotid artery
CN III, IV, V1, V2, VI
What are the four parts of the brain
cerebrum
cerebellum
diencephalon
brainstem
