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Metacarpophalangeal Joints (MCP) (MPJ)
- Metacarpal head is biconvex, cam-shaped so it extends further volarly than dorsally and is wider volarly than dorsally
- Soft tissue restraints limit motion to flexion/extension and adduction/abduction
- Adduction and abduction point of reference is the middle finger and the middle finger either radially or ulnarly deviates
- Axial rotation is permitted only passively
True or False: The anterolateral edge of the trapezium has an overhang, referred to as the beak, which is part of the tunnel for the flexor carpi radialis (FCR)?
