CNS Vasculature

Question 0

Ophthalmic artery

Answer 0

• Supplies eye and orbital structures

- CRA supplies inner retina

Question 1

ICA branches

Answer 1

1. Ophthalmic artery
2. Posterior Communicating Artery
3. Anterior Choroidal Artery
4. Anterior Cerebral Artery
5. Middle Cerebral Artery

(OPAAM)

Question 2

Posterior Communicating Artery

Answer 2

Supplies optic chiasm, tract, ventral hypothalamus, thalamus

Question 3

Anterior Choroidal Artery

Answer 3

Supplies choroid plexus, optic tract, crus cerebri, internal capsule

Question 4

Anterior Cerebral Artery

Answer 4

Supplies the medial portions of the brain

Question 5

MCA

Answer 5

Supplies lateral hemisphere, Broca’s and Wernicke’s areas

*Gives off lenticulo-striate arteries which provide blood to the genu and posterior limb of the internal capsule

Question 6

Vertebral Artery Branches

Answer 6

1. Posterior Spinal Artery
2. Anterior Spinal Artery
3. PICA
4. Medullary Arteries

Question 7

PICA

Answer 7

Supplies lateral medulla and inferior cerebellum; also choroid plexus of 4th ventricle

Occlusion could affect vestibular nuclei, dorsal motor nucleus of X, nucleus ambiguus, lateral spinothalamic tract, descending sympathetic fivers

Question 8

Basilar Artery branches

Answer 8

1. Pontine arteries
2. Labyrinthine artery
3. AICA
4. Superior cerebellar artery
5. PCA

Question 9

Labyrinthine artery

Answer 9

Supplies inner ear

Question 10

AICA

Answer 10

Supplies anterior inferior cerebellum and parts of the pons and medulla

Question 11

PCA

Answer 11

Supplies the inferior lateral hemispheres of the brain, parts of the temporal lobe, and the occipital lobe

Question 12

Thalamus blood supply

Answer 12

PCA and Posterior Communicating Artery

Question 13

Midbrain blood supply

Answer 13

PCA and Basilar artery

Question 14

Pons blood supply

Answer 14

Basilar artery

Question 15

Medulla blood supply

Answer 15

Basilar and Vertebral arteries

Question 16

Superior Cerebral Veins

Answer 16

Drain into superior sagittal sinus from lateral hemispheres;

Question 17

Internal Cerebral Veins

Answer 17

Drain into Great Cerebral Vein of Galen

Question 18

Tearing of Superior cerebral veins

Answer 18

Subdural hemorrhage