Blood Supply - CNS

Question 0

Requirement in terms of Cardiac output

Answer 0

10/20%

Question 1

Highly metabollic organ of the body

Answer 1

Brain

Question 2

consumes what % of body’s oxygen consumption

Answer 2

20%

Question 3

brain consumes what % of liver’s glucose production

Answer 3

66%

Question 4

Blood flow concentrated to those that needed it more

Answer 4

Diving reflex

Question 5

What is usually depleted of blood supply

Answer 5

Kidneys

Question 6

Internal Carotid artery enters cranial cavity through

Answer 6

Carotid canal at the floor of middle cranial fossa

Question 7

ICA passes through the cavernous sinus _________ to Sella Turcica

Answer 7

Lateral

Question 8

ICA bends upward into the cranial cavity medial to _______

Answer 8

Anterior Clinoid Process

Question 9

Different turns constitute the

Answer 9

CAROTID SIPHON

Question 10

S shaped portion of ICA

Answer 10

Carotid Siphon

Question 11

MAJOR BRACHES OF ICA

Answer 11

"HOPAMA"
Hypophyseal A
Opthalmic A
Posterior Communicating A
Anterior Choroidal A
Middle Cerebral A
Anterior Cerebral A

Question 12

Supply pituitary gland and branches as superior hypophyseal and inferior hypophyseal

Answer 12

Hypophyseal A

Question 13

Arises as ICA emerges into the cavernous sinus and supplies eye and orbital contents

Answer 13

Opthalmic A

Question 14

Branch of Opthalmic a

Answer 14

Central Retinal A (CRA)

Question 15

Serves as connection b/w ICA to vertebral artery system and connects ICA to Posterior Cerebral artery

Answer 15

Posterior Communicating A

Question 16

Choroid plexus in inferior horn of lateral ventricle as well as internal capsule, caudate nucleus, putamen and basal ganglia

Answer 16

Anterior Choroidal A

Question 17

Direct continuation of ICA that passes laterally to Sylvian Fissure supplying dorsolateral surface of cerebral hemispheres

Answer 17

Middle Cerebral A

Question 18

Initial segment of MCA

Answer 18

M1

Question 19

Initial segment of MCA will give off

Answer 19

lateral arteries of MCA

Question 20

lateral arteries of MCA + Medial arteries of ACA

Answer 20

Lenticulostriate Arteries