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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.
Specifically, the bones are:
★ First metatarsal bone
★ Second metatarsal bone
★ Third metatarsal bone
★ Fourth metatarsal bone
★ Fifth metatarsal bone
| Contents |
| Common characteristics of the metatarsal bones |
| Articulations |
| Injuries |
| Additional images |
| See also |
| External links |
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 below, slightly above.
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 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.
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")
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.
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.
Additional images
See also
★ Bone terminology
★ Terms for anatomical location
External links
★
★ Diagram
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