Arterial supply of the Trunk

Question 1

how is the body wall and organs supplied by oxygenated blood?

Answer 1

the aorta, arising from the heart gives major branches to the head and neck and upper limbs.

then passes inferiorly along the posterior body wall just in front and slightly to the left of the bodies of the thoracic and Lumbar vertebrae to supply the body walls and organs.

Question 2

what are the two parts of the descending aorta?

Answer 2

Thoracic part and abdominal part of aorta

Question 3

what comes before the aortic arch?

Answer 3

ascending aorta

Question 4

what comes after the aortic arch?

Answer 4

descending aorta

Question 5

Where does the beginning and termination of the aortic arch occur?

Answer 5

T4

Question 6

Where does bifurcation of the abdominal aorta occur?

Answer 6

L4

Question 7

Where does bifurcation of the common iliac arteries occur?

Answer 7

L5

Question 8

Say the order of the aorta.

Answer 8

Ascending aorta, aortic arch, descending aorta = thoracic part, abdominal part, common iliac arteries

Question 9

What arises from the ascending aorta?

Answer 9

Right and Left coronary arteries

Question 10

What are the branches of the aortic arch?

Answer 10

Braciocephalic trunk, left common carotid artery, left subclavian artery

The brachiocephalic trunk branches into right common carotid artery and right subclavian artery

Question 11

What are branches of the descending thoracic aorta?

Answer 11

Only the Posterior Intercostal Arteries are identifiable on a cadaver.

• Not identifiable on a cadaver: (BOP)
• Bronchial arteries
• Oesophageal arteries
• Pericardial arteries

Question 12

What chest wall arteries arise from the descending thoracic aorta?

Answer 12

• Bronchial arteries, esophagel arteries,

Question 13

What chest wall arteries arise from the internal thoracic (mammary) artery?

Answer 13

• Superior epigastric artery, musculophrenic artery,

Question 14

What artery gives origin to the internal thoracic artery?

Answer 14

sUBclavian artery

Question 15

How do the internal thoracic arteries lie?

Answer 15

Parasternally. Accompanied by the internal thoracic veins and give off and receive the anterior intercostal vessels respectively

Question 16

Describe how the abdominal aorta terminates? Where does it lie in?

Answer 16

Into common iliac arteries at vertebral level L4. And lie in the iliac fossae.
(right and left common iliac)

Question 17

Describe Where the common iliac arteries terminates and into what?

Answer 17

External iliac arteries at vertebral level L5 and become the femoral artery.

Internal iliac arteries at vertebral level L5-S1 and supply the pelvic viscera

(have both right and left