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Deltoid
Pectoralis major
Lattisimus dorsi
Teres Major
Supraspinatus
Infraspinatus
Teres minor
subscapularis
ALL have
insertions on
humerus and
therefore cause
movement of
the humerus

Action: Abduction of the arm
O
I

Action: flexion, adduction and medial rotation
O
I

Action: extension, adduction, medial rotation
I
O
I

Action: adduction, medial rotation
I
O


Rotator cuff muscle
Action: abduction
 Assists the deltoid
O
I


Rotator Cuff Muscle
Action: lateral rotation
O
I


Rotator Cuff Muscle
Action: lateral rotation
I
O


I
Rotator Cuff Muscle
Action: medial rotation
O


Pectoantebrachialis
Xiphihumeralis
Both superficial ventral muscles
Same actions as pectoralis major
Deltoid
Latissimus dorsi
Supraspinatus
Infraspinatus
Teres minor
Teres major
Deltoid
Pectoralis major
Trapezius
Pectoralis Minor
Internal Intercostals
Deltoid
Pectoralis Major
Serratus Anterior
Rectus Abdominus
Connective tissue
Internal obliques
External obliques
Transverse Abdominus
Tendinous sheet
Trapezius
Deltoid
Levator Scapulae
supraspinatus
infraspinatus
Teres minor
Teres Major
Rhomboid Major
Latissimus dorsi