Flexion of metacarpophalangeal joint is produced by all except
Flexion of metacarpophalangeal joint is by lumbricals and both palmar and dorsal interossei. Abduction is by the action of dorsal interossei. Adduction is by the actions of palmar interossei . B D Chaurasia 7th edition Page no: 163
Lumbricals
Dorsal interossei
Palmar interossei
Extensor pollicus longus
Upper limb