3-5 [1] (Anterior Thoracic Wall: Internal View)

Question 1

Origin

Answer 1

Lower border of the ribs.

Question 2

Insertion

Answer 2

Upper border of the rib below.

Question 3

Action

Answer 3

Elevate the ribs (note: this action is controversial, inconclusive).

Question 4

Innervation

Answer 4

Intercostal nerves.

Question 5

Name

Answer 5

Innermost intercostals