Lesson 1C

Question 1

First important branches of ascending aorta

Answer 1

coronory arteries

Question 2

most common variant variant of branches and in what % of population

Answer 2

22%

left CCA and brachiocephalic have common origin

Question 3

The second most common variant of branches

Answer 3

Left vertebral artery from aortic arch

Question 4

Least common normal variant

Answer 4

Both CCA common origin

Question 5

Double aortic arch - what happens

Answer 5

Left ascending aorta goes to the left, wraps around esophagus, connects the right descending aorta

No brachiocephalic arteries. Subclavian and CCA branch right off

Question 6

The vertebral arteries brach directly off the

Answer 6

subclavian

Question 7

The subclavian artery gives rise to what other major branches (2)

Answer 7

Internal mammary artery

Thyrocervical trunk

Question 8

Subclavian artery becomes the axillary after the ____

Answer 8

1st rib

Question 9

The axillary artery becomes what artery as it extends to elbow

Answer 9

Brachial

Question 10

Other branch of the brachial artery

Answer 10

Deep brachial artery

Question 11

The brachial artery separates into 3 branches

Answer 11

ulnar
radial
interosseus

Question 12

Radial and ulnar arteries communicate with each other via the

Answer 12

single dorsal arch

Question 13

The deep palmar arch is more (prox/distal)? to superficial palmar arch

Answer 13

Proximal

Question 14

The superficial arch is most dominant and gives rise to the

Answer 14

common digital arteries

Question 15

The common digital arteries gives rise to _____ which ______

Answer 15

Proper digital arteries

Which course down either side of the fingers

Question 16

Brain receives blood supply from which 4 vessels

Answer 16

Paired internal carotid A

Paried vertebral A

Question 17

At the upper border of the thyroid cartilage what happens to the CCA

Answer 17

Widens into the bulb then bifurcates into the internal carotid artery and the external artery

Question 18

The bulb is continuous with what?

Answer 18

The ICA (considered the bulbs proximal portion)

Question 19

ICA supplies the ____

Answer 19

Brain

Question 20

ECA supplies the ____ (2)

Answer 20

Neck and face

Question 21

Describe which is muscular/elastic of ICA and ECA

Answer 21

ICA = muscular
ECA = elastic

Question 22

Which is bigger, ICA or ECA

Answer 22

ICA

Question 23

What is the flow divider

Answer 23

The junction of the ICA and ECA

Question 24

The divider is the location of what

Answer 24

The carotid body and nerve complex of the carotid sinus

Question 25

The ICA has no

Answer 25

Extracranial branches

Question 26

The ECA branches early after the bifurcation and gives rise to

Answer 26

Superior thyroid artery

Question 27

Single most important means of differentiating ICA and ECA

Answer 27

Identifying branches of ECA

Question 28

Which is more medial, ECA or ICA

Answer 28

ECA

Question 29

The ECA has a highly resistive flow pattern as a result of

Answer 29

Distal vascular bed that it supplies