Phalangeal joint Movement MCP, PIP, DIP, IP
Proximal Extension
C7 Root Motor groups
Extensor Digiti Minimi
Extensor Digitorum Communis
Extensor Indicis
Extensor Pollicis Brevis
Extensor Pollicis Longus
Distal Flexion
C8 Root Motor groups
Flexor Digitorum Profundus
Flexor Digitorum Superficialis
Flexor Pollicis Longus
Intrinsic position - Proximal flexion, distal extension
T1 Root Motor groups
Muscles of the Hand
Range of motion
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