Unit 3 - Thorax, Abdomen, Pelvis, and Perineum: Branches of the Intercostal Arteries (Ex. III)

Question 1

A intercostal aa.

Answer 1

branch:

• L cutaneous branch ==> A and L thoracic walls
  
  • L mammary branch supplies breast along w/ M mammary branch from internal thoracic a.

Question 2

P intercostal aa.

Answer 2

branches:

• dorsal branch
  
  • spinal branch ==> SC
  • M cutaneous branch ==> P thoracic wall
  • L cutaneous branch ==> P thoracic wall
• collateral branch ==> L thoracic wall