Fourth metacarpal bone

Fourth metacarpal bone

Infobox Bone
Name = Fourth metacarpal bone
Latin = ossa metacarpalia IV
GraySubject = 55
GrayPage = 228


Caption = The fourth metacarpal. (Left.)



Caption2 = A fractured right hand fourth metacarpal
Origins =
Insertions =
Articulations =
MeshName = Metacarpal+Bones
MeshNumber = A02.835.232.087.319.550

The fourth metacarpal bone (metacarpal bone of the ring finger) is shorter and smaller than the third.

The base is small and quadrilateral; its superior surface presents two facets, a large one medially for articulation with the hamate, and a small one laterally for the capitate.

On the radial side are two oval facets, for articulation with the third metacarpal; and on the ulnar side a single concave facet, for the fifth metacarpal.

ee also

* Metacarpus
* First metacarpal bone
* Second metacarpal bone
* Third metacarpal bone
* Fifth metacarpal bone


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  • Third metacarpal bone — Infobox Bone Name = Third metacarpal bone Latin = ossa metacarpalia III GraySubject = 55 GrayPage = 228 Caption = The third metacarpal. (Left.) Caption2 = The five metacarpal bones, numbered. Origins = Insertions = Articulations = MeshName =… …   Wikipedia

  • Second metacarpal bone — Infobox Bone Name = Second metacarpal bone Latin = ossa metacarpalia II GraySubject = 55 GrayPage = 228 Caption = The second metacarpal. (Left.) Caption2 = The five metacarpal bones, numbered. Origins = Insertions = Articulations = MeshName =… …   Wikipedia

  • First metacarpal bone — Infobox Bone Name = First metacarpal bone Latin = ossa metacarpalia I GraySubject = 55 GrayPage = 228 Caption = The first metacarpal (Left) Caption2 = The five metacarpal bones, numbered. Origins = Insertions = Articulations = MeshName =… …   Wikipedia

  • Bone — is the substance that forms the skeleton of the body. It is composed chiefly of calcium phosphate and calcium carbonate. It also serves as a storage area for calcium, playing a large role in calcium balance in the blood. The 206 bones in the body …   Medical dictionary

  • Capitate bone — Bone: Capitate bone Shown is the right hand, palm down (left) and palm up (right). Proximal: A=Scaphoid, B=Lunate, C=Triquetral, D=Pisiform Distal: E=Trapezium, F=Trapezoid, G=Capitate, H=Hamate …   Wikipedia

  • Bone, carpal — One of the wrist bones. There are eight carpal bones that are arranged in two rows. The carpal bones articulate (come together to form a joint) proximally (on their near ends) with the long bones of the forearm the radius and, indirectly, with… …   Medical dictionary

  • splint bone — noun a rudimentary metacarpal or metatarsal bone on either side of the cannon bone in the leg of a horse or related animal • Hypernyms: ↑bone, ↑os * * * noun 1. : one of the rudimentary metacarpal or metatarsal bones resembling a splint on either …   Useful english dictionary

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  • capitate bone — noun the wrist bone with a rounded head shape that articulates with the 3rd metacarpus • Syn: ↑capitate, ↑os capitatum • Derivationally related forms: ↑capitate (for: ↑capitate) • Hypernyms: ↑ …   Useful english dictionary

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