Arterial supply of trunk

Question 1

aorta

Answer 1

carries oxygenated blood around the body.

It arises from the heart gives major branches to the head and neck and upper limbs before passing inferiorly along the posterior body wall just in front and slightly to the left the thoracic and lumbar vertebral bodies to supply the body wall and organs.

Question 2

what does the aorta consist of

Answer 2

ascending aorta, aortic arch, descending thoracic aorta, and abdominal aorta.

Question 3

where does the descending aorta piece the diaphragm

Answer 3

vertebral level T12 to become the abdominal aorta.

Question 4

where does the abdominal aorta branch into

Answer 4

the common iliac arteries

Question 5

what do the common iliac arteries branch into

Answer 5

internal and external iliac arteries.

Question 6

Question 7

vertebral level of beginning and end of aortic arch

Answer 7

begins and ends at the level of the second rib

Question 8

Bifurcation of the abdominal aorta into common iliac arteries

Answer 8

L4 to L5 level

Question 9

Bifurcation of the common iliac arteries into external and internal iliac arteries

Answer 9

S1-3 level

Question 10

what are the main branches of the aorta

Answer 10

Branches of the ascending aorta
Branches of the aortic arch

Question 11

Branches of the ascending aorta:

Answer 11

These are: the left and right coronary arteries (dealt with earlier).

Question 12

Branches of the aortic arch:

Answer 12

These are: the brachiocephalic trunk (BT), left common carotid artery (LCC) and left subclavian artery (LSA).

Question 13

What are the two branches given off by the brachiocephalic trunk?

Answer 13

right carotid artery (which sends blood to your brain) and your right subclavian artery (which sends blood to your right arm)

Question 14

Main branches of the descending thoracic aorta:

Answer 14

posterior intercostal arteries (lying between the ribs posteriorly)

oesophageal arteries (supplying the oesophagus)

bronchial arteries (supplying the tissue of the lungs with oxygenated blood)

mediastinal branches (supplying other mediastinal structures)

Question 15

Each intercostal space (space between the ribs) is supplied in the form of

Answer 15

a neurovascular bundle of structures running in each space.

Question 16

These neurovascular structures running in each intercostal space are the:

Answer 16

intercostal vein
intercostal artery
intercostal nerve

Question 17

list intercostal vein
intercostal artery
intercostal nerve from superior to inferior

Answer 17

intercostal vein
intercostal artery
intercostal nerve

Question 18

where do the vessels of the intercostal space arise from

Answer 18

arise from, or drain into, larger vessels that run vertically along the anterior and posterior chest wall (e.g., aorta, internal thoracic vessels, superior vena cava).

Question 19

where do the vessels of the intercostal space arise from

Answer 19

arise from, or drain into, larger vessels that run vertically along the anterior and posterior chest wall (e.g., aorta, internal thoracic vessels, superior vena cava).

Question 20

Arteries arise from the abdominal aorta in order to supply

Answer 20

diaphragm, adrenals, kidneys, gonads, and the gut tube

Question 21

Common iliac arteries

Answer 21

arise at vertebral level L4 and lie in iliac fossae. They are the terminal branches of the abdominal aorta.

Question 22

External iliac arteries

Answer 22

arise from the common iliac arteries at vertebral level L5 and become the femoral

Question 23

Internal iliac arteries

Answer 23

arise from the common iliac arteries at vertebral level L5 and supply pelvic viscera.

Question 24

Main branches of the abdominal aorta:

Answer 24

Common iliac arteries
External iliac arteries
Internal iliac arteries

Question 25

where do the internal thoracic arteries arise from

Answer 25

subclavian arteries and lie anteriorly and parasternally, accompanied by the internal thoracic veins.

Question 26

what do internal thoracic (internal mammary) arteries give off

Answer 26

anterior intercostal arteries to the intercostal spaces.

Question 27

Within each intercostal space, each anterior intercostal artery anastomoses with its corresponding posterior intercostal artery which is given off by the _________.

Answer 27

descending aorta

Question 27

Within each intercostal space, each anterior intercostal artery anastomoses with its corresponding posterior intercostal artery which is given off by the _________.

Answer 27

descending aorta

Question 28

Branches from the internal thoracic arteries also supply

Answer 28

the breast, fibrous pericardium, parietal pleura and the diaphragm.

Question 29

Question 30

Answer 30

Question 31