Muscle | Attachments | Innervation | Main Action(s) |
Palmaris Brevis Muscle | Medial aspect of palmar aponeurosis, Skin over hypothenar eminence | Superficial branch of ulnar nerve | Wrinkle skin of palm |
Palmaris Longus Muscle | Common flexor tendon, medial epicondyle of humerus | Median Nerve | Flexes hand |
Abductor Pollicis Brevis Muscle | Lateral side of proximal phalanz of digit 1, Scaphoid, trapezium, and flexor retinaculum | Recurrent branch of Median Nerve | Abducts digit 1 |
Flexor Pollicis Brevis Muscle | Lateral side of proximal phalanx of digit 1, Scaphoid, trapezium, and flexor retinaculum | Recurrent branch of Median Nerve | Flexes digit 1 |
Opponens Pollicis | Lateral side of first metacarpal bone, Scaphoid, trapezium, and flexor retinaculum | Recurrent branch of Median Nerve | Opposes digit 1 |
Abductor Digiti Minimi | Medial side of base of proximal phalanx of digit 5, Pisiform, hamate, and flexor retinaculum | Deep branch of ulnar nerve | Abducts digit 5 |
Flexor Digiti Minimi Brevis | Medial side of base of proximal phalanx of digit 5, Pisiform, hamate, and flexor retinaculum | Deep branch of ulnar nerve | Flexes digit 5 |
Opponens Digiti Minimi | Medial border of 5th metacarpal bone, Pisiform, hamate, and flexor retinaculum | Deep branch of ulnar nerve | Opposes digit 5 |