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Encyclopedia > First metatarsal bone
Bone: First metatarsal bone
The first metatarsal. (Left.)
Bones of the right foot. Dorsal surface.
Latin os metatarsale I
Gray's subject #64 272

The first metatarsal bone is remarkable for its great thickness, and is the shortest of the metatarsal bones. Image File history File links Gray284. ... Image File history File links Download high resolution version (638x1195, 101 KB) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... 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. ...


The body is strong, and of well-marked prismoid form.


The base presents, as a rule, no articular facets on its sides, but occasionally on the lateral side there is an oval facet, by which it articulates with the second metatarsal.


Its proximal articular surface is of large size and kidney-shaped; its circumference is grooved, for the tarsometatarsal ligaments, and medially gives insertion to part of the tendon of the Tibialis anterior; its plantar angle presents a rough oval prominence for the insertion of the tendon of the Peronæus longus. The kidneys are bean-shaped excretory organs in vertebrates. ... The tibialis anterior is a muscle in the anterior of the shin. ... The fibularis longus (also known as peroneus longus) is a superficial muscle in the human leg, and acts to evert and plantar flex the ankle. ...


The head is large; on its plantar surface are two grooved facets, on which glide sesamoid bones; the facets are separated by a smooth elevation. In anatomy, a sesamoid bone is a bone embedded within a tendon. ...


This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


 
 

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