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The metacarpophalangeal joints (MCP) are situated between the metacarpal bones and the proximal phalanges of the fingers. [1] These joints 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 proximal phalanges . [ 1 ]
The carpometacarpal joint connects the carpal bones to the metacarpus or metacarpal bones which are joined at the intermetacarpal articulations. In the fingers, finally, are the metacarpophalangeal joints (including the knuckles) between the metacarpal bones and the phalanges or finger bones which are interconnected by the interphalangeal joints
Opposite the metacarpophalangeal articulation each tendon is bound by fasciculi to the collateral ligaments and serves as the dorsal ligament of this joint; after having crossed the joint, it spreads out into a broad aponeurosis, which covers the dorsal surface of the first phalanx and is reinforced, in this situation, by the tendons of the ...
In anatomy, a biaxial joint is a freely mobile joint that allows movement in two anatomical planes. [1] An example of a biaxial joint is a metacarpophalangeal joint of the hand. [2] The joint allows for movement along one axis to produce bending or straightening of the finger, and movement along a second axis, which allows for spreading of the ...
Joints of the hand, X-ray. The bones in each carpal row interlock with each other and each row can therefore be considered a single joint. In the proximal row a limited degree of mobility is possible, but the bones of the distal row are connected to each other and to the metacarpal bones by strong ligaments that make this row and the metacarpus a functional entity.
The flexor pollicis brevis is a two-headed muscle. The superficial head arises on the flexor retinaculum, while the deep head originates on three carpal bones: the trapezium, trapezoid, and capitate. The muscle is inserted onto the radial sesamoid bone of the metacarpophalangeal joint.
These terms form the last part of a three-word phrase (hint: the first word is a verb that means "to move/rotate something in a circular motion"). Related: 300 Trivia Questions and Answers to ...
The form metacarpius is more true [9] [13] to the later Greek form μετακάρπιος. [13] Metacarpalis, as in ossa metacarpalia in the current official Latin nomenclature, Terminologia Anatomica [12] is a compound consisting of Latin and Greek parts. [14] The usage of such hybrids in anatomic Latin is disapproved by some. [9] [14]