Wrist

Trapezium, Trapezoid, Capitate, Hamate

Distal row of wrist bones

Extension

Extensor carpi radialis longus and brevis, extensor carpi ulnaris

Posterior

Extensor carpi radialis longus, Extensor carpi radialis brevis, Extensor carpi ulnaris

Radial deviation

Flexor carpi radialis, extensor carpi radialis longus

Flexion

Flexor carpi radialis, flexor carpi ulnaris

Anterior

Flexor carpi ulnaris, Flexor carpi radialis, Palmaris longus

Ulnar deviation

Flexor carpi ulnaris, extensor carpi ulnaris

Extensor carpi radialis brevis

O: Lateral epicondyle of humerus I: Base of 3rd metacarpal A: Wrist extension N: Radial nerve

Extensor carpi ulnaris

O: Lateral epicondyle of humerus I: Base of 5th metacarpal A: Wrist extension and ulnar deviation N: Radial nerve

Flexor carpi radialis

O: Medial epicondyle of humerus I: Base of 2nd and 3rd metacarpals A: Wrist flexion, radial deviation N: Median nerve

Palmaris longus

O: Medial epicondyle of humerus I: Palmar fascia A: Assistive in wrist flexion N: Median nerve

Flexor carpi ulnaris

O: Medial epicondyle of humerus I: Pisiform and base of 5th metacarpal A: Wrist flexion, ulnar deviation N: Ulnar nerve

Extensor carpi radialis longus

O: Supracondylar ridge of humerus I: Base of 2nd metacarpal A: Wrist extension, radial deviation N: Radial nerve

Scaphoid, Lunate, Triquetrum, Pisiform

Proximal row of wrist bones

Palmar fascia

Relatively thick fascia located in the palm of the hand, also called the palmar aponeurosis.