Upper Extremity

Trapezius

A - Superior Fibers - elevate, superiorly rotate scapula

Middle Fibers - retract scapula

Inferior Fibers - Depress scapula

N - Accessory Nerve - CN XI

Levator Scapulae

A - Elevates, Inferiorly rotates scapula

O - N/A

I - Superior medial border of scapula

N - Dorsal Scapular Nerve

Rhomboid Major

A - Elevates, Retracts, Inferiorly Rotates Scapula

O - N/A

I - Medial Border of Scapula

N - Dorsal Scapular Nerve

Rhomboid Minor

A - Elevates, Retracts, Inferiorly Rotates Scapula

O - N/A

I - Superior Medial border of scapula

N - Dorsal Scapular Nerve

Pectoralis Minor

A - Protract, Depress Scapula

O - N/A

I - Coracoid Process of Scapula

N - Medial Pectoral Nerve

Serratus Anterior

A - Protract, Superiorly rotate Scapula, Stabilizes Scapula

O - N/A

I - Anterior medial border of scapula

N - Long Thoracic Nerve

Subclavius

A - stabilizes, depresses clavicle

N - Nerve to subclavius

Latissimus Dorsi

A - Extends, Adducts, Medial Rotation GH Joint

O - N/A

I - Intertubercular groove of humerus

N - Thoracodorsal Nerve

Pectoralis Major

A - Flexion, Adduction, Medial Rotation of GH Joint

O - N/A

I - Intertubercular groove of humerus

N - Medial and Lateral Pectoral Nerves

Deltoid

A - Anterior Fibers - flex, medially rotate GH joint

Middle Fibers - Abduct GH joint

Posterior Fibers - Extend, laterally rotate GH joint

O - N/A

I - Deltoid tuberosity of humerus

N - Axillary Nerve

Coracobrachialis

A - Flexion, Adduction of GH Joint

O - Corocoid process

I - Middle medial shaft of humerus

N - Musculocutaneous Nerve

Teres Major

A - Extension, Adduction, Medial Rotation of GH Joint
O - Inferior lateral border, inferior angle of scapula
I - Lesser tubercle, intertubercular groove of humerus
N - Lower Subscapular Nerve

Triceps Brachii - Long Head

A - Extension of GH Joint
O - Infraglenoid tubercle
I - Olecranon Process
N - Radial Nerve

Biceps Brachii - Long Head

A - Flexion of GH Joint
O - Supraglenoid Tubercle
I - Radial tuberosity and bicipital aponeurosis
N - Musculocutaneous Nerve

Subscapularis - Rotator Cuff

A - Medial Rotation, Stabilization of GH Joint
O - Subscapular Fossa
I - Lesser Tubercle of humerus
N - Upper, Lower Subscapular Nerves

Supraspinatus - Rotator Cuff

A - Abduction, Stabilization of GH Joint
O - Supraspinous fossa
I - Greater Tubercle of humerus
N - Suprascapular nerve

Infraspinatus - Rotator Cuff

A - Adduction, Lateral Rotation, Stabilization of GH Joint
O - Infraspinous fossa
I - Greater tubercle
N - Suprascapular nerve

Teres Minor

A - Adduction, Lateral Rotation, Stabilization of GH Joint
O - Superior lateral of scapula
I - Greater Tubercle
N - Axillary Nerve

Biceps Brachii - Short Head and Long Head

A - Flexes Elbow, Forearm Supination (GH Flexion)
O - Coracoid process of scapula
I - Radial Tuberosity and bicipital aponeurosis
N - Musculocutaneous Nerve

Brachialis

A - Primary Flexor of Elbow

N - Musculocutaneous

Brachioradialis

A - Elbow Flexion
O - N/A
I - Styloid Process of Radius
N - Radial Nerve

Triceps Brachii - Lateral, Medial, (Long) Head

A - Primary Extensor of Elbow, (GH Extension)

O - (supraglenoid tubercle)

I - Olecranon Process

N - Radial Nerve

Pronator Teres

A - Forearm Pronation
O - Medial Epicondyle of Humerus
I - N/A
N - Median Nerve

Flexor Carpi Radialis

A - Wrist Flexion, Radial Deviation (Abduction)
O - Medial Epicondyle of Humerus
I - N/A
N - Median Nerve

Palmaris Longus

A - Weak Wrist Flexion
O - Medial Epicondyle of Humerus
I - N/A
N - Median Nerve

Flexor Carpi Ulnaris

A - Wrist Flexion, Ulnar Deviation (Adduction)
O - Medial Epicondyle of Humerus
I - N/A
N - Ulnar Nerve

Flexor Digitorum Superficialis

A - Wrist Flexion; MP, PIP 2-5
O - Medial Epicondyle of Humerus
I - Middle Phalanges of fingers 2-5
N - Median Nerve

Flexor Pollicis Longus

A - Flexion of Thumb MP, IP
O - N/A
I - Distal phalanx of Thumb
N - Median Nerve

Flexor Digitorum Profundus

A - Wrist Flexion; MP, PIP, DIP 2-5
O - N/A
I - Distal Phalanges 2-5
N - 2-3 - Ulnar Nerve; 4-5 - Median Nerve

Pronator Quadratus

A - Forearm Pronation

N - Median Nerve

Extensor Carpi Radialis Longus

A - Wrist extension, Radial Deviation (Abduction)

N - Radial Nerve

Extensor Carpi Radialis Brevis

A - Wrist Extension, Radial Deviation (Abduction)
O - Lateral Epicondyle of Humerus
I - N/A
N - Radial Nerve

Extensor Digitorum

A - Wrist Extension; Extend MP, PIP, DIP joint 2-5
O - Lateral Epicondyle of Humerus
I - N/A
N - Radial Nerve

Extensor Digiti Minimi

A - Wrist Extension; Extend MP, PIP joint finger 5
O - Lateral Epicondyle of Humerus
I - N/A
N - Radial NErve

Extensor Carpi Ulnaris

A - Wrist Extension, Ulnar Deviation (Adduction)
O - Lateral Epicondyle of Humerus
I - N/A
N - Radial Nerve