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- O: Supraspinous fossa of the scapula
- I : Greater tubercle of the humerus
- A: Initiates abduction of the shoulder
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- O: Infraspinous fossa of the scapula
- I: Greater tubercle of the humerus
- A: External rotation, adduction,extension, and horizontal abduction of the shoulder
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- O: Superior lateral border of the scapula
- I: Greater tubercle of the humerus
- A: External rotation,adduction,extension, and horizontal abduction of the shoulder
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- O: Subscapular fossa of the scapula
- I: Lesser tubercle of the humerus
- A: Medial rotation of the glenohumeral joint
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- O: Minor-C7-T1
- Major-T2-T5
- I: Medial border of the scapula from the root of the spine of the scapula to the inferior angle
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- O: Ribs 3-5
- I: Coracoid process of the scapula
- A: Depression & abduction of the scapulothoracic joint
- Tilts the scapulothoracic joint anteriorly
- When the scapula is fixed, elevates the ribs during forced inspiration
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- O: Transverse processes of C1-C4
- I: Medial border from root of the spine of the scapula to superior angle of the scapula
- A: Elevates the scapula
- Downward rotations of the scapulothoracic joint
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- O: First rib and cartilage
- I: Inferior, lateral aspect of the clavicle
- A: Stabilizes the sternoclavicular joint
- Elevates the first rib
- Draws the clavicle inferiorly and anteriorly
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- O: Coracoid process of the scapula
- I: Middle of the medial border of the humerus
- A: Flexes and adducts the glenohumeral joint
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- O: Humerus, lateral epicondyle and ulna, supinator crest
- I: Radius, proximal one-third of posterior,lateral and anterior surfaces
- A: Supinates the forearm
- Slightly extends the elbow
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- O: Humeral head: Medial epicondyle
- Ulnar head: Medial aspect of coronoid process
- I: Middle one-third of lateral radius
- A: Pronates the forearm
- Assists in flexing the elbow
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- O: Humerus, distal one-half of anterior surface
- I: Ulna, tuberosity, and coranoid process
- A: Flexes the elbow
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- O: Lateral supracondylar ridge of the humerus
- I: Styloid process of the radius
- A: Flexes the humeroulnar joint
- Assists in pronation
- Supination of the radioulnar joint when these movements are resisted
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