SHOULDER FLEXORS Flashcards
Shoulder Flexors:
Muscles Involved (3)
Pectoralis Major
Coracobrachialis
Biceps Brachii (Long Head)
O: Pectoralis Major
Clavicle, sternum, and upper 6
costal cartilages
I: Pectoralis Major
Lateral lip of bicipital groove
N: Pectoralis Major
Medial and
Lateral Pectoral
A: Pectoralis Major
Adducts and rotates arm
medially; flexes arm
O: Coracobrachialis
Coracoid process
I: Coracobrachialis
Medial aspect of shaft of
humerus
N: Coracobrachialis
Musculocutaneous
A: Coracobrachialis
Flexes the arm, weak adductor
O: Biceps Brachii (Long Head)
Supraglenoid tubercle of
scapula
I: Biceps Brachii (Long Head)
Tuberosity of radius and
bicipital aponeurosis into deep
fascia of forearm
N: Biceps Brachii (Long Head)
Musculocutaneous
A: Biceps Brachii (Long Head)
Supinator of Forearm, Elbow
Joint Flexor, Weak shoulder joint
flexor