Origin: Medial surface of distal ulna

Insertion: Anterolateral surface of distal radius

Action: Pronates forearm

Innervation:Medial Nerve

Origin: Medial epicondyle of humber and coranoid process of ulna

Insertion: Distal lateral surface of radius

Action: Pronates forearm

Innervation:Medical Nerve

Origin: Lateral epicondyle of humerus and proximal ulna

Insertion: Anterolateral surface of radius, distal to radial tuberosity

Action: Supinates forearm

Innervation:Deep radial nerve

Origin: Medical epicondyle of humerus

Insertion: Bases of metacarpals 2 and 3

Action: Flexes and abducts wrist

Innervation:Median nerve

Origin: Medial epicondyle of humerus

Insertion: Pisiform, hamate, base of metacarpal 5

Action: Flexes and adducts wrist

Innervation:Ulnar Nerve

Origin: Medial epicondyle of humerus

Insertion: Palmar aponeurosis/ flexor tetinaculum

Action: flexes wrist

Innervation:Median nerve

Origin: Lateral supracondylar ridge of humerus

Insertion: Base of metacarpal 2

Action: Extends and abducts wrist

Innervation:Radial Nerve

Origin: Lateral epicondyle of humerus

Insertion: Base of metacarpal 3

Action: Extends and abducts wrist

Innervation:Radial Nerve

Origin: Lateral epicondyle of humerus; posterior ulna

Insertion: Base of metacarpal 5

Action: Extends and adducts wrist

Innervation: Deep Radial Nerve