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Encyclopedia > Metatarsus
Bone: Metatarsus
Skeleton of foot. Lateral aspect.
Gray's subject #64 272
MeSH Metatarsus

The metatarsus consists of the five long bones of the foot, which are numbered from the medial side (ossa metatarsalia I.-V.); each presents for examination a body and two extremities. These are analogous to the metacarpals of the hand. Image File history File links Gray291. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Grays Anatomy illustration of a human femur. ... For other uses, see Foot (disambiguation). ... It has been suggested that Human Anatomical Terms be merged into this article or section. ... The metacarpus is the intermediate part of the hand skeleton that is located between the fingers distally and the carpus which forms the connection to the forearm. ... The hands (med. ...


Specifically, the bones are:

Contents

The first metatarsal bone is remarkable for its great thickness, and is the shortest of the metatarsal bones. ... The second metatarsal bone is the longest of the metatarsal bones, being prolonged backward into the recess formed by the three cuneiform bones. ... The third metatarsal bone articulates proximally, by means of a triangular smooth surface, with the third cuneiform; medially, by two facets, with the second metatarsal; and laterally, by a single facet, with the fourth metatarsal. ... The fourth metatarsal bone is smaller in size than the third; its base presents an oblique quadrilateral surface for articulation with the cuboid; a smooth facet on the medial side, divided by a ridge into an anterior portion for articulation with the third metatarsal, and a posterior portion for articulation... The fifth metatarsal bone is recognized by a rough eminence, the tuberosity, on the lateral side of its base. ...

Common characteristics of the metatarsal bones

The body is prismoid in form, tapers gradually from the tarsal to the phalangeal extremity, and is curved longitudinally, so as to be concave below, slightly convex above. In tetrapods, the tarsi are the cluster of bones in the foot between the tibia and fibula and the metatarsus. ... The phalanges in a human hand Illustration of the phalalnges The name Phalanges is commonly given to the bones that form fingers and toes. ...


The base or posterior extremity is wedge-shaped, articulating proximally with the tarsal bones, and by its sides with the contiguous metatarsal bones: its dorsal and plantar surfaces are rough for the attachment of ligaments. The English word POSTERIOR is identical to the original Latin adjective, and has two different uses : as an ADJECTIVE, it indicates that someone or something is behind another, either spatially or chronologically it also became a SUBSTANTIVE, indicating the rear-end, especially of a person, i. ... Look up wedge in Wiktionary, the free dictionary. ... In anatomy, the dorsum is the upper or back side of an animal, as opposed to the ventrum. ... A ligament is a short band of tough fibrous connective tissue composed mainly of long, stringy collagen fibres. ...


The head or anterior extremity presents a convex articular surface, oblong from above downward, and extending farther backward below than above.


Its sides are flattened, and on each is a depression, surmounted by a tubercle, for ligamentous attachment. 1. ...


Its plantar surface is grooved antero-posteriorly for the passage of the flexor tendons, and marked on either side by an articular eminence continuous with the terminal articular surface. (Mentioned in "Charlotte's Web") In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ... A tendon (or sinew) is a tough band of fibrous connective tissue that connects muscle to bone and is built to withstand tension. ...


Articulations

The base of each metatarsal bone articulates with one or more of the tarsal bones, and the head with one of the first row of phalanges.

  • The first metatarsal articulates with the first cuneiform.
  • the second with all three cuneiforms.
  • the third with the third cuneiform.
  • the fourth with the third cuneiform and the cuboid.
  • The fifth with the cuboid.

The medial cuneiform (also known as first cuneiform) is the largest of the cuneiforms. ...

Injuries

The metatarsal bones are often broken by soccer players, notably by David Beckham in 2002 and Wayne Rooney (a double fracture) in 2006, in both cases threatening their participation in World Cup tournaments. These and other recent cases have been attributed to the modern lightweight design of football boots, which give less protection to the foot. Football (soccer) - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... David Beckham David Robert Joseph Beckham OBE (born May 2, 1975) is an English footballer born in Leytonstone, London. ... This article or section does not adequately cite its references or sources. ... The FIFA World Cup Trophy, which has been awarded to the world champions since 1974. ... Football boots, like all footwear, come in various sizes and styles. ...


Additional images

External links

The State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, is an academic medical center and is the only one of its kind in the Borough of Brooklyn in New York City. ...

See also


  Results from FactBites:
 
Metatarsus Adductus (761 words)
Metatarsus adductus, also known as metatarsus varus, is a common foot deformity noted at birth that causes the front half of the foot, or forefoot, to turn inward.
Metatarsus adductus may also be referred to as "flexible" (the foot can be straightened to a degree by hand) or "non-flexible" (the foot cannot be straightened by hand).
The cause of metatarsus adductus is not known.
MedlinePlus Medical Encyclopedia: Metatarsus adductus (416 words)
Metatarsus adductus is thought to occur as a result of the infant's position inside the uterus.
Physical examination is all that is needed to diagnose metatarsus adductus.
Developmental dislocation of the hip may be associated with a small number of infants with metatarsus adductus.
  More results at FactBites »

 
 

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