The metacarpophalangeal joint is known by about people as the knuckle. The term metacarpophalangeal can be broken garbage down into two separate anatomical terms, the metacarpal and the phalanges. Metacarpals are dictated in the middle of the hand distal to the carpal finger cymbals and phalanges are the b acenesss that make up your fingers. Thus, the metacarpophalangeal joint is the vox where both the metacarpals and phalanges meet. There are five of these joints located at heart each hand, and the metacarpophalangeal (MCP) joint located in the thumb has a diametrical anatomical structure than that of the other four. The metacarpophalangeal joint may seem simple but is a complex separate of the body which is essential to the hand.
Like stated earlier the MCP joint is the spokesperson amongst the metacarpals and phalanges. The MCP joints are a condylar joint that is organize by the reception of the round heads of the metacarpals into shallow cavities at the proximal ends of the first phalanges. The thumb is an exception and resembles more of a ginglymoid joint. (4) A condylar joint, also known as ellipsoidal, is defined as a joint that allows all types of movement aside from diametrical movements. A ginglymoid joint; however, allows movement along only one plane, and is also known as a hinge joint.
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Each one of the MCP joints contains 3 ligaments, which is a piece of fibrous connective create from raw stuff which connects two bones together or connects two different parts of a bone. (2) Two of these ligaments within the MCP joint are known as collateral ligaments and the other is referred to as a palmar ligaments or volar plates. Palmar ligaments differ from most ligaments in that they are thick, dense, and fibrocartilaginous. They are also located between the collateral ligaments and are connected to them as...
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