Index Distal Interphalangeal Joint

• Index Distal Phalanx
• Index Middle Phalanx

Range of motion

Injuries:

Arthritis

Movement

Flexion: Flexor Digitorum Profundus Index

Extension (through the digital extensor mechanism)

• First Dorsal Interosseous
• First Palmar Interosseous
• Index Lumbrical
• Extensor Digitorum Index
• Extensor Indicis

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