Hand Anatomy Flashcards
Finger extension muscles
Extensor Digitorum Communis Extensor Digiti Minimi Extensor Indicis Extensor Pollicis Brevis (ex) Abductor Pollicis Longus (ex)
Finger flexion muscles
Flexor Pollicis Brevis
Flexor Digiti Minimi
Flexor Digitorum Superficialis
Flexor Digitorum Profundus
Radial Nerve muscles
Extensor Digitorum Communis Extensor Digiti Minimi Extensor Indicis Extensor Pollicis Brevis (ex) Abductor Pollicis Longus (ex) Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis Extensor Carpi Ulnaris Supinator
Median Nerve muscles
Flexor Digitorum Superficialis Flexor Pollicis Brevis (U) Flexor Digitorum Profundus (IF,MF) Flexor Carpi Radialis Palmaris Longus Pronator Teres Pronator Quadratus Abductor Pollicis Brevis Opponens Pollicis
Ulnar Nerve muscles
Flexor Pollicis Brevis (M) Flexor Digiti Minimi Flexor Digitorum Profundus (RF,SF) Flexor Carpi Ulnaris Adductor Pollicis Abductor Digiti Minimi Opponens Digiti Minimi Flexor Digiti Minimi Dorsal Interosseous Palmar Interosseous
MCP extension (IF, MF, 2RF); Pulls on SF too
Extensor Digitorum Communis
SF MCP extension
Extensor Digiti Minimi
IF MCP extension; runs side by side EDC
Extensor Indicis
Thumb MCP extension
Extensor Pollicis Brevis (ex)
Thumb abduction; contributes to extension
Abductor Pollicis Longus (ex)
Thumb MCP flexion
Flexor Pollicis Brevis
Flexor Digiti Minimi
SF flexion
PIP flexion; one muscle belly to 4 tendons; some don’t have in SF
Flexor Digitorum Superficialis
DIP flexion
Flexor Digitorum Profundus
Wrist extension; radial deviation
Extensor Carpi Radialis Longus
Wris extension
Extensor Carpi Radialis Brevis