Exam 2 Muscles Connecting Thoracic wall to Upper Extremity Flashcards
1
Q
Origin of serratus anterior:
A
Upper ribs
2
Q
Insertion of serratus anterior:
A
vertebral border/scapula
3
Q
Actions of serratus anterior:
A
- Abducts the scapula
- Stabilizes the scapula
- Involved w/ forced inspiration but ONLY when the humerus is abducted
4
Q
Nerve of the serratus anterior
A
Long Thoracic (C5, C6, & C7)