Metacarpophalangeal

Bending the joint resulting in a decrease of angle; moving the base of the fingers toward the palm of the hand.
- Flexor digitorum profundus
- Flexor digitorum superficialis
- Flexor digiti minimi
- Abductor digiti minimi
- Interossei
- Lumbricals
Straightening the joint resulting in an increase of angle; moving the base of the fingers away from the palm of the hand.
- Extensor digitorum (middle & ring fingers)
- Extensor digiti minimi
- Extensor indicis
Medial movement toward the axial line; movement of the fingers toward the middle finger.
- Palmar interossei (in the extended finger)
- Flexor digitorum superficialis
- Flexor digitorum profundus
Lateral movement away from the axial line; movement of the fingers away from the middle finger.
- Dorsal interosssei (in the extended finger)
- Extensor digitorum
- Extensor digiti minimi
- Extensor indicis
- Abductor digiti minimi
Interphalangeal
Bending the joint resulting in a decrease of angle; moving the distal two segments of the fingers toward the base of the fingers.
- Flexor digitorum profundus
- Flexor digitorum superficialis (proximal joint only)
Straightening the joint resulting in an increase of angle; moving the distal two segments of the fingers away from the base of the fingers.
- Extensor digitorum
- Extensor digiti minimi
- Extensor indicis
- Lumbricals
- Interossei
Notes
See Wrist for midcarpal joints. Also see Thumb. Mentioned articulations occur during concentric phase of exercise video examples.