-
Pectoralis Minor
o - ribs 3-5
I - Coracoid process
a: abduction, downward rotation, depression
-
Trapezius Muscle
O: base of skull, spinous process of c7-t12
I: Lateral clavicle, acromium, scapular spine
a: elevation, depression, upward rotation, and adduction of scapula, extension of neck
-
Levator Scapulae Muscle
O: c1-c4
I: superior angle of scapula
A: elevation of scapula, downward rotation of scapula
-
Rhomboid major and minor
O: spinous process of c7-t5
I: medial border
A: adduction, elevation, downward rotation
-
Serratus anterior
O: ribs 1-9
I: medial border
A: abduction, upward rotation
-
subclavius muscle
O: superior aspect of 1st rib
I: middle of clavicle inferiorly
A: stabilization and protection of SC joint
-
Deltoid
O: clavicle, acromion, scapula
I: Humerus
A: flexion, abduction, extension, horizontal abduction
-
Supraspinatus
O: posterior scapula
I: Proximal humerus
A: Abduction, external rotation
-
Infraspinatus
O: posterior scapula
I: posterior humerus distal to supraspinatus intersection
A: abduction
-
Teres minor
O: posterior scapula
I: posterior humerus distal to infraspinatus insertion
A: external rotation
-
subscapularis
O: anterior scapula
I: anterior humerus
A: internal rotation
-
Pectorialis major
O: clavicle and sternum
I: Humerus
A: adduction, internal rotation, horizontal adduction
-
Pectoralis minor
O: ribs 3-5
I: coracoid process
A: scapular protraction, downward rotation and depression
-
Biceps Brachii
- O:
- Long head: glenoid fossa and labrum
- Short head: coracoid process
I: Proximal radius
A: shoulder flexion, elbow flexion, wrist supination
-
Corocobrachialis
O: coracoid process
I: humerus
A: shoulder flexion, adduction
-
trapezius
O: spine
I: scapula, clavicle
- A:
- Upper: upper scapular elevation
- Lower: scapular rotation
-
latissimus dorsi
O: spine, illiac crest
I: humerus
A: shouldr extension, adduction, internal rotation
-
Teres major
O: posterior scapula
I: anterior humerus
A: shoulder extension, adduction, internal rotation
-
serratus anterior
O: ribs 1-9
I: medial border of scapula
A: scapular upward rotation, protraction (abduction)
-
rhomboid major and minor
O: spinous process c7-t5
I: Medial border of scapula
- A: scapular retraction/addiction
- downward rotation, slight elevation
-
levator scapulae
O: c1-c4
I: superior angle of scapula
A: scapular elevation, downward rotation
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