Aortic anatomy

Question 1

aortic arch and variants

Answer 1

3 vessel aortic arch, bovine, aberrant r subclavian, 4 vessel aortic arch

Question 2

normal aortic arch

Answer 2

3 vessel aortic arch: brachiocephalic, L common carotid, L subclavian

Question 3

bovine arch

Answer 3

2 vessel arch

common origin of brachiocephalic and L common carotid

Question 4

aberrant right subclavian

Answer 4

4 vessel arch
r subclavian arises distal to left subclavian and loops behind esophagus; may cause dysphagia lusoria

diverticulum of kommerel: bulge at origin of aberrant subclavian artery

Question 5

left vertebral origin off aorta

Answer 5

4 vessel arch; left vertebral is the 3rd branch proximal to left subclavian