Flexor Digiti Minimi Brevis: Origin, Insertion, Action & Nerve Supply

Flexor Digiti Minimi Brevis: The flexor digiti minimi brevis is a hypothenar muscle in the hand, it lies lateral to the abductor digiti minimi.

Attachment of the Flexor Digiti Minimi Brevis

Origin: The flexor digiti minimi brevis muscle arises from the hamate bone and the palmar surface of the flexor retinaculum of the hand.
Insertion: Medial side of the base of proximal phalanx of the little finger.

Nerve Supply of the Flexor Digiti Minimi Brevis
The flexor digiti minimi brevis is innervated by the deep branch of the ulnar nerve (C8 and T1).

Function of the Flexor Digiti Minimi Brevis
The flexor digiti minimi brevis flexes the little finger at the metacarpophalangeal joint.

Upper Extremity Muscle Atlas

• Abductor Pollicis Longus
• Abductor Digiti Minimi
• Abductor Pollicis Brevis
• Adductor Pollicis
• Anconeus
• Biceps Brachii
• Brachioradialis
• Brachialis
• Coracobrachialis
• Deltoid
• Extensor Carpi Radialis Longus
• Extensor Carpi Radialis Brevis
• Extensor Carpi Ulnaris
• Extensor Digitorum
• Extensor Digiti Minimi
• Extensor Indicis
• Extensor Pollicis Longus
• Extensor Pollicis Brevis
• Flexor Carpi Radialis
• Flexor Carpi Ulnaris
• Flexor Digitorum Profundus
• Flexor Digitorum Superficialis
• Flexor Digiti Minimi Brevis
• Flexor Pollicis Brevis
• Flexor Pollicis Longus
• Infraspinatus
• Interosseous Muscles, Dorsal
• Interosseous Muscles, Palmar
• Levator Scapulae
• Latissimus Dorsi
• Opponens Digiti Minimi
• Opponens Pollicis
• Pectoralis Major
• Pectoralis Minor
• Palmaris Longus
• Pronator Quadratus
• Pronator Teres
• Rhomboid Major and Minor
• Subscapularis
• Supinator
• Serratus Anterior
• Supraspinatus
• Trapezius
• Triceps Brachii
• Teres Major
• Teres Minor