The Palmar carpometacarpal ligaments (or volar) are a series of bands on the
palmar surface of the
carpometacarpal joints that connect the
carpal
The carpal bones are the eight small bones that make up the wrist (or carpus) that connects the hand to the forearm. The term "carpus" is derived from the Latin carpus and the Greek καρπός (karpós), meaning "wrist". In human anatomy, th ...
bones to the second through fifth
metacarpal
In human anatomy, the metacarpal bones or metacarpus form the intermediate part of the skeletal hand located between the phalanges of the fingers and the carpal bones of the wrist, which forms the connection to the forearm. The metacarpal bones ...
bones. The second metacarpal is connected to the
trapezium. The third metacarpal is connected to the trapezium, to the
capitate
The capitate bone is a bone in the human wrist found in the center of the carpal bone region, located at the distal end of the radius and ulna bones. It articulates with the third metacarpal bone (the middle finger) and forms the third carpomet ...
, and to the
hamate
The hamate bone (from Latin hamatus, "hooked"), or unciform bone (from Latin ''uncus'', "hook"), Latin os hamatum and occasionally abbreviated as just hamatum, is a bone in the human wrist readily distinguishable by its wedge shape and a hook-l ...
. The fourth and fifth metacarpals are connected to the hamate.
The palmar carpometacarpal ligaments have a somewhat similar arrangement to the
dorsal carpometacarpal ligaments
The dorsal carpometacarpal ligaments, the strongest and most distinct carpometacarpal ligaments, connect the carpal and metacarpal bones on their dorsal surfaces.
* The second metacarpal bone receives two fasciculi, one from the greater, the other ...
, with the exception of those of the
third metacarpal
The third metacarpal bone (metacarpal bone of the middle finger) is a little smaller than the second.
The dorsal aspect of its base presents on its radial side a pyramidal eminence, the styloid process, which extends upward behind the capitate; ...
, which are three in number:
* a lateral one from the
greater multangular, situated superficial to the sheath of the tendon of the
Flexor carpi radialis
In anatomy, flexor carpi radialis is a muscle of the human forearm that acts to flex and (radially) abduct the hand. The Latin ''carpus'' means wrist; hence flexor carpi is a flexor of the wrist.
Origin and insertion
The flexor carpi radialis is ...
;
* and intermediate one from the
capitate
The capitate bone is a bone in the human wrist found in the center of the carpal bone region, located at the distal end of the radius and ulna bones. It articulates with the third metacarpal bone (the middle finger) and forms the third carpomet ...
;
* and a medial one from the
hamate
The hamate bone (from Latin hamatus, "hooked"), or unciform bone (from Latin ''uncus'', "hook"), Latin os hamatum and occasionally abbreviated as just hamatum, is a bone in the human wrist readily distinguishable by its wedge shape and a hook-l ...
.
References
External links
*
Hand
Ligaments of the upper limb
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