metacarpus

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metacarpus

1. the skeleton of the hand between the wrist and the fingers, consisting of five long bones
2. the corresponding bones in other vertebrates

Metacarpus

 

the part of the superior (anterior) pentadactyl extremity of vertebrates that is located between the carpus and the distal phalanges of the fingers. In man, the metacarpus is made up of five metacarpal bones, which are attached to the muscles of the palm. The hypothenal muscles of the thumb and the little finger are the largest muscles of the palm. The tendons of the antebrachial muscles, which set the fingers in motion, pass along the metacarpal bones; blood vessels and motor and sensory nerves are also located here. On the palm side, the metacarpal skin is thick and hairless and the fold markings are individuated. On the dorsal side, the skin is thinner and often covered with short hairs. Tendovaginitis develops with inflammatory diseases of the sheaths of the tendons. Fractures of the metacarpal bones require apposition and immobilization for a period up to 1—1½ months.

metacarpus

[¦med·ə′kär·pəs]
(anatomy)
The portion of a hand or forefoot between the carpus and the phalanges.
References in periodicals archive ?
The Acumed Hand Fracture System is designed for the management of fractures, fusions, and osteotomies of the distal, middle, and proximal phalanges and metacarpals and other bones of appropriate size for the devices.
Angulation of the phalanx or metacarpal requires corrective wedge osteotomy for maintenance of the longitudinal axis.
Clinical features reported to occur in trapezoid fractures are base of second metacarpal tenderness, anatomical "snuffbox" tenderness or pain on axial loading of the second finger (Afifi and Lu, 2011) although these signs are not universal.
In tayassuids, metacarpals III and IV are slender and unfused; metatarsals III and IV usually are fused at the proximal end (Lundelius, 1960:22-23).
5) Compared with other forms of MPS, Morquio syndrome tends to have greater skeletal manifestations and spine involvement such as scoliosis, kyphosis, hyperlordosis, severe gibbus, flaring of the lower ribs as well as platyspondyly, pectus carinatum metacarpals, and small carpal bones (often with some absent).
Only a true lateral view will show the dorsal displacement of the metacarpals relative to the carpal bones.
At 0830 h on d 29, all of the pigs supplying blood samples were killed by electrical stunning and exsanguination to collect metacarpal bone samples.
Although we were unable to see directly where the muscle tendon inserted, a probe inserted along the course of the tendon was seen to end at the base of the middle metacarpal under image intensifier screening (Fig 2).
We went to the Urgent Care Center and after x-rays the Doctor informed us he'd broken the fifth metacarpal (the bone of the hand right below the little finger).
Alternatively they can be controlled by a pressure sensitive touch pad, which relies on the remnant digit or tissue surrounding the metacarpal bone to provide the necessary pressure to activate the finger.
Akhil sustained the injury during his opening round bout at the World championships in September when he sprained one of his metacarpal ( wrist) muscles and tore a few ligaments while landing a punch on his Dominican Republic opponent Roberto Navarro Gonzalez.
HIGH FELL'S Craig Nicholson made a terrific comeback from a metacarpal injury when he beat Consett's Michael Guy at the North Road show.