CNS blood flow

Question 1

Internal carotids

Answer 1

Branch anteriorly from the carotid arteries and project into the brain case

Question 2

external carotids

Answer 2

branch ventrally from the carotid arteries and projects to the face

Question 3

Carotid sinus

Answer 3

Base of internal carotid which contains baroreceptors and chemoreceptors

Question 4

external carotid branches

Answer 4

-lingual (forward down)
-facial (forward up)
-occipital (backwards)
-superficial temporal (over)

Question 5

Internal carotid branches

Answer 5

-Ophthalmic artery
-Anterior cerebral artery (frontal and parietal)
-Middle cerebral artery (midbrain and lateral CNS)

Question 6

Vertebral arteries

Answer 6

Fuse and make the basilar artery

Question 7

Basilar blood supply

Answer 7

Branches out to feed the pons, medulla and midbrain

Question 8

Posterior cerebral arteries

Answer 8

From the basilar artery these connect to the internal carotids (COW)

Question 9

Posterior communication arteries

Answer 9

Connect the posterior cerebral arteries to the Internal carotids (COW)

Question 10

anterior communication artery

Answer 10

Connects the two anterior carotids together to complete COW

Question 11

circle of willis

Answer 11

A backup blood flow formed by the carotid and vertebral blood flow

Question 12

Superior, anterior inferior, posterior inferior Cerebellar arteries

Answer 12

Branches from the basilar artery feeding the cerebellum area

Question 13

CPP

Answer 13

Cerebral perfusion pressure. is the blood pressure at capillary level

Question 14

ICP

Answer 14

Intracranial pressure. pressure due to CSF and Brian tissues

Question 15

ICP and CPP relationship

Answer 15

ICP pushes on blood vessels and reduces pressure. Can increase in reduce blood pressure to 0

Question 16

ICP relief

Answer 16

Can be partially relived by CSF movement to spinal cord