Vascular Neuroanatomy

Question 1

Where does the ICA arise from?

Answer 1

C4 bifurcation of CCA and travels up via the carotid sheath

- Branches into ACA, Anterior Choroidal, PC artery and Opthalmic

Question 2

What are the 4 segments of the ICA?

Answer 2

1) Cervical
2) Petrous
3) Cavernous
4) Cerebral (Suprachinoid (Intradural))

Question 3

What is a prominent artery of the ECA and what pathology can it present with?

Answer 3

Middle Meningeal Artery

- Extra-Dural Haemorrhage

Question 4

Where do the VA arise from?

Answer 4

• Arise from subclavian –> F Magnum -> Basilar Arteries

Anterior Spinal Arteries (Near to COW)

Question 5

What are the main divisions of the cerberal arteries

Answer 5

1) Middle: M1 (Lateral lenticulostriate)
M2 , M3, M4
2) Anterior: Splits into 3 A1, A2 and A3
3) Posterior Loops around