The intercarpal (joints of the carpal bones of the wrist) can be subdivided into three arrangements of joints (additionally called enunciations): Those of the proximal column of carpal bones, those of the distal line of carpal bones, and those of the two lines with one another.
Verbalizations:
The bones in every carpal column interlock with one another and each line can along these lines be viewed as a solitary joint. In the proximal line a restricted level of portability is conceivable, however the bones of the distal column are associated with one another and to the metacarpal bones by solid tendons that make this line and the metacarpus a useful substance.
Developments:
The verbalization of the hand and wrist considered all in all includes four articular surfaces:
(a) the mediocre surfaces of the range and articular plate;
(b) the predominant surfaces of the scaphoid, lunate, and triangular, the pisiform having no fundamental part in the development of the hand;
(c) the S-molded surface framed by the sub-par surfaces of the scaphoid, lunate, and triangular;
(d) the equal surface framed by the upper surfaces of the bones of the second column.
These four surfaces shape two joints: (1) a proximal, the wrist-joint appropriate; and (2) a distal, the mid-carpal joint.
No comments:
Post a Comment