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 ?
Repetitive strain, specifically forced wrist extension, is thought to aggravate bossing symptoms due to a tenosynovitis of the extensor carpi radialis longus and brevis at their insertions on the dorsal aspect of the base of the second and third metacarpals. There is variable presentation of ganglions seen in 0-30% of subjects.
conversidens metacarpals TMM 43059-19 to -21, metatarsals TMM 43059-10 to -35 and TMM 18594-19 to -24; Equus cf.
CMC dislocations associated with fifth or other metacarpal fractures or hamate bone fractures are more frequent than pure dislocations.
Radiograph of the hand showed an expansile lesion of entire 2nd metacarpal with cortical destruction and soft tissue shadow.
Review of imaging findings suggested the nidus was likely near the base of the second metacarpal, accessible with a posterior approach.
The synostosis present between the major and minor metacarpals in the radiograph after recapture did not seem to impede flight in this snowy owl.
After preparations and draping in the supine position were finalized, reduction with traction and abduction of the thumb were performed under fluoroscopy, followed by pronation by applying pressure with the surgeon's thumb at the dorsoradial metacarpal base.
We saw extensive metallosis and damaged-appearing extensor indices (EI) and distal extensor carpi radialis longus (ECRL) tendons over the index metacarpal (Figure 4(b)).
At your dog's age it is very likely it will be fine without surgery if just one of the metacarpals is broken.
2 patients developed superficial wound infection, both were the case of multiple metacarpal fractures (both of these cases had involvement of two metacarpals).
Three common palmar digital arteries arise from the convexity of the SPA, each joined by a corresponding palmar metacarpal artery from the deep palmar arch and divide into two proper palmar digital arteries which supply the medial four fingers.
Subjects and Methods: Total 56 patients of 20-60 years age of both genders with comminuted and open fractures of metacarpal or phalanges bone of the hand, Swanson's Type-I were included by non-probability, consecutive sampling.