Blood Supply Flashcards
Blood vessels accompany _____ ______.
peripheral nerves
Arterial branches pierce the __________.
epineurium
brain stem/cerebellum is supplied by:
vertebral arteries (branches of the vertebral arteries)
vertebral arteries form the
basiliar artery
The basilar artery is formed at the ___________. (location)
pontomeduallary junction (located along the anterior surface of the pons)
The basilar artery is formed from what arteries?
vertebral arteries
Vertebral arteries have 3 main branches:
- anterior spinal
- posterior spinal
- posterior inferior cerebellar artery (PICA)
Posterior Inferior Cerebellar Artery (PICA) supplies:
inferior cerebellum
The basilar artery branches into: (2 sets of arteries)
- anterior inferior cerebellar arteries (AICA)
2. superior cerebellar arteries (SCA)
The basilar artery terminates as:
Posterior CEREBRAL arteries (PCA)
The posterior cerebral arteries are formed at: (location)
pons/midbrain junction
What does the posterior cerebral artery supply?
midbrain
What are the arteries that make up the circle of willis?
- anterior CEREBRAL
- internal carotid
- anterior communicating
- posterior communicating
- posterior CEREBRAL
- basilar artery
cerebellum is supplied by: (2)
- internal arteries
2. posterior cerebral arteries
Internal carotids divide into: (2)
- anterior cerebral artery
2. middle cerebral artery
Internal carotids give off a small branch which is called:
posterior communicating artery
Anterior cerebral artery (ACA) supplies:
- corpus callosum
- medial surface of frontal and parietal lobes (inner)
- anterior head of caudate
Middle cerebral artery (MCA) supplies:
most of lateral hemisphere (outside surface of brain)
Posterior cerebral artery (PCA) supplies:
- midbrain
- occipital lobe
- medial and inferior temporal lobes
Areas of marginal blood flow on the lateral hemispheres where cerebral arteries form anastomoses are called:
watershed areas
what would be affected if a patient had a MCA stroke
arms, trunk, face
what would be affected if a patient had a ACA stroke
legs
what would be affected if a patient had a PCA stroke
vision, coordination, decreased motor control
what is the order that the arteries come off the aorta?
brachiocephalic trunk (R), L common carotid, L subclavian
What two arteries come off the common carotid?
internal and external carotid
What does the subclavian arteries branch into?
vertebral arteries which then join to make the basilar artery
