Origin: Latissimus dorsi

Insertion: Olecranon process of the ulna

Action: Forearm extension

(a)  

Origin: apex of the coracoid process of scapula

Insertion: Radial tuberosity of the radius

Action: Elbow flexion and forearm supination

(a)  

Origin: Supraglenoid tubercle of the scapula

Insertion: Deep fascia of forearm

Action: Elbow flexion and forearm supination

(a)  

Origin: Axillary of border scapula

Insertion: olecranon process of ulna

Action: Forearm extension

(a)  

Origin: Greater tuberosity of humerus

Insertion: Olecranon process of ulna

Action: Forearm extension

(a)  

Origin: Humerus

Insertion: Olecranon process of ulna

Action: Forearm extension

(a)  

Origin: Medial epicondyle of humerus

Insertion: Radius

Action: Hand protonation

(a)  

Origin: Medial epicondyle of humerus

Insertion: Phalanges

Action: Digits flexion

(a)  

Origin: Medial epicondyle of humerus; olecranon process of the ulna

Insertion: Pisiform

Action: Carpal flexion

(a)  

Origin: Medial epicondyle of humerus

Insertion: Second and third metacarpals

Action: Second and third metacarpal flexion

(a)  

Origin: Lateral supracondylar ridge of the humerus

Insertion: Second metacarpals

Action: Hand extension

(a)  

Origin: lateral epicondyle of humerus

Insertion: Third metacarpals

Action: Hand extension

(a)  

Origin: Lateral epicondyle of the humerus

Insertion: digits

Action: digit extension

(a)  

Origin: Lateral supracondylar of the humerus

Insertion: digits

Action: digit extension

(a)  

Origin: Lateral epicondyle of humerus

Insertion: fifth metacarpal

Action: fifth digit extension

(a)