part of part of connects skeletal joint manus joint proximal phalanx of manus metacarpal bone manual digit metacarpophalangeal joint MESH:D008662 SCTID:370651001 MA:0000453 NCIT:C33106 knuckles galen:MetacarpoPhalangealJoint metacarpal phalangeal joint EMAPA:19302 SCTID:280995004 metacarpal joint articulationes metacarpophalangeae MP joint UBERON:0003695 The metacarpophalangeal joints (MCP) are of the condyloid kind, formed by the reception of the rounded heads of the metacarpal bones into shallow cavities on the proximal ends of the first phalanges, with the exception of that of the thumb, which presents more of the characters of a ginglymoid joint. Arthritis of the MCP is a distinguishing feature of Rheumatoid Arthritis, as opposed to the distal interphalangeal joint in osteoarthritis. [WP,unvetted]. FMA:35246 GAID:255 knuckle metacarpo-phalangeal joint Wikipedia:Metacarpophalangeal_joint