Anterior Trunk Muscles Flashcards
1
Q
Pectoralis major
A
O: sternal end of clavicle, sternum, and cartilage of ribs 1-6 I: Greater tubercle of humerus A:Flexes arm
2
Q
Pectoralis minor
A
O: ribs 3-5 I: coracoid process of scapula A: protracts and rotates scapula inferiorly
3
Q
External intercostals
A
A: elevates ribs
4
Q
Internal intercostals
A
A: depresses ribs
5
Q
Rectus abdominis
A
O: pubic crest and symphysis I: xiphoid process and costal cartilages of ribs 5-7 A: flexes vertebral column
