Blood supply to the brain

Question 1

what are the 2 arterial routes to the brain?

Answer 1

interior carotid (ant.) and vertebral arteries (post.)

Question 2

the internal carotid comes into the brain

Answer 2

anteriorly

Question 3

the vertebral arteries come into the brain

Answer 3

posteriorly

Question 4

interior carotid enters via

Answer 4

carotid canal

Question 5

vertebral arteries enter via

Answer 5

foramen magnum