Thumb Metacarpophalangeal Joint

Bones:

Thumb Metacarpal
Thumb Proximal Phalanx
Thumb Radial MCP Sesamoid
Thumb Ulnar MCP Sesamoid

Ligaments:

Range of motion

Injuries:

Movement

Flexion

Flexor Pollicis Longus
Flexor Pollicis Brevis

Extension

Extensor Pollicis Brevis

Range of motion

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