It presents on its base one facet on its superior surface, which is concavo-convex and articulates with the hamate, and one on its radial side, which articulates with the fourth metacarpal.
The dorsal surface of the body is divided by an oblique ridge, which extends from near the ulnar side of the base to the radial side of the head. The lateral part of this surface serves for the attachment of the fourth Interosseus dorsalis; the medial part is smooth, triangular, and covered by the extensor tendons of the little finger.
The palmar surface is similarly divided: Its lateral side (facing the fourth metacarpal) provides the origin for the third palmar interosseus, its medial side contains the insertion of opponens digiti quinti.
Clinical significanceedit
A fracture of the fourth and/or fifth metacarpal bones transverse neck secondary due to axial loading is known as a boxer's fracture.[1][[[Boxer%27s_fracture#{{{section}}}|contradictory]]] The fifth metacarpal bone is the most common bone to be injured when throwing a punch.
Ossificationedit
The ossification process begins in the shaft during prenatal life, and in the head between 11th and 37th months.[2]
Additional imagesedit
Fifth metacarpal bone of the left hand (shown in red). Animation.
Fifth metacarpal bone of the left hand. Close up.
Palmer view of the left hand (fifth metacarpal shown in yellow).
Dorsal view of the left hand (fifth metacarpal shown in yellow).
This article incorporates text in the public domain from page 228 of the 20th edition ofGray's Anatomy(1918)
^Shultz, S. J., Houglum, P. A., Perrin, D. H. (2010). Examination of Musculoskeletal Injuries. Chicago: Human Kinetics
^Balachandran, Ajay; Anooj Krishna; Moumitha Kartha; Libu G. K.; Liza John; Krishnan B (30 December 2013). "A Study of Ossification of heads of 2nd to 5th Metacarpals in Forensic Age Estimation in the Kerala Population" (PDF). Journal of Evolution of Medical and Dental Sciences. 2 (52): 10165–10171. doi:10.14260/jemds/1751. Retrieved 26 December 2013.
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fifth, metacarpal, bone, fifth, metacarpal, bone, metacarpal, bone, little, finger, pinky, finger, most, medial, second, shortest, metacarpal, bones, fifth, metacarpal, left, hand, shown, palmar, view, fifth, metacarpal, left, detailsidentifierslatinos, metaca. The fifth metacarpal bone metacarpal bone of the little finger or pinky finger is the most medial and second shortest of the metacarpal bones Fifth metacarpal boneFifth metacarpal of the left hand shown in red Palmar view The fifth metacarpal Left DetailsIdentifiersLatinos metacarpale VFMA23903Anatomical terms of bone edit on Wikidata Contents 1 Surfaces 2 Clinical significance 3 Ossification 4 Additional images 5 See also 6 ReferencesSurfaces editIt presents on its base one facet on its superior surface which is concavo convex and articulates with the hamate and one on its radial side which articulates with the fourth metacarpal On its ulnar side is a prominent tubercle for the insertion of the tendon of the extensor carpi ulnaris muscle The dorsal surface of the body is divided by an oblique ridge which extends from near the ulnar side of the base to the radial side of the head The lateral part of this surface serves for the attachment of the fourth Interosseus dorsalis the medial part is smooth triangular and covered by the extensor tendons of the little finger The palmar surface is similarly divided Its lateral side facing the fourth metacarpal provides the origin for the third palmar interosseus its medial side contains the insertion of opponens digiti quinti Clinical significance editA fracture of the fourth and or fifth metacarpal bones transverse neck secondary due to axial loading is known as a boxer s fracture 1 Boxer 27s fracture section contradictory The fifth metacarpal bone is the most common bone to be injured when throwing a punch Ossification editThe ossification process begins in the shaft during prenatal life and in the head between 11th and 37th months 2 Additional images edit nbsp Fifth metacarpal bone of the left hand shown in red Animation nbsp Fifth metacarpal bone of the left hand Close up nbsp Palmer view of the left hand fifth metacarpal shown in yellow nbsp Dorsal view of the left hand fifth metacarpal shown in yellow nbsp Fracture of the fifth metacarpal boxer s fracture See also editMetacarpus First metacarpal bone Second metacarpal bone Third metacarpal bone Fourth metacarpal boneReferences edit nbsp This article incorporates text in the public domain from page 228 of the 20th edition of Gray s Anatomy 1918 Shultz S J Houglum P A Perrin D H 2010 Examination of Musculoskeletal Injuries Chicago Human Kinetics Balachandran Ajay Anooj Krishna Moumitha Kartha Libu G K Liza John Krishnan B 30 December 2013 A Study of Ossification of heads of 2nd to 5th Metacarpals in Forensic Age Estimation in the Kerala Population PDF Journal of Evolution of Medical and Dental Sciences 2 52 10165 10171 doi 10 14260 jemds 1751 Retrieved 26 December 2013 nbsp Wikimedia Commons has media related to Fifth metacarpal bone Portal nbsp Anatomy Retrieved from https en wikipedia org w index php title Fifth metacarpal bone amp oldid 1158143334, wikipedia, wiki, book, books, library,
