Muscles of the Thorax and Shoulder - Superficial (O/I/A) Flashcards
1
Q
Pectoralis major
A
O: Sternal end of clavicle, cartilage of ribs
I: Greater tubercle of the Humerus
A: Arm flexion, rotation, adduction
2
Q
Serratus anterior
A
O: Ribs 1-8
I: Anterior vertebral scapula
A: Rotates scapula upward
3
Q
Deltoid
A
O: Lateral third of clavicle
I: Deltoid Tuberosity
A: Arm abduction
4
Q
Pectoralis minor
A
O: Ribs 3-5
I: Coracoid process of scapula
A: Protracts/rotates scapula downward
5
Q
Pectoantebrachialis
A
O: Manubrium of Sternum
I: Fascia of Forelimb
A: Adducts forelimb
6
Q
Xiphihumeralis
A
O: Xiphoid process of sternum
I: Proximal end of humerus
A: Adducts forelimb
