Metatarsus

Metatarsus

The Metatarsus is the intermediate part of the anatomical structure of the foot in humans and other primates. It is composed of five long bones, known as the metatarsal bones. The metatarsus is located between the phalanges (toes) and the tarsal bones in the hindfoot.

Structure

The metatarsus is made up of five cylindrical bones which are numbered from the medial side (side of the big toe): the first, second, third, fourth, and fifth metatarsal (metatarsals). These bones are connected to the phalanges and the tarsal bones.

Metatarsal bones

The metatarsal bones are typically numbered from one to five starting medially and moving laterally. Each metatarsal bone consists of a body or shaft, a base, and a head. 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.

Function

The metatarsus functions as a lever arm during walking, running, and jumping. It also provides support and balance to the foot.

Clinical significance

Injuries to the metatarsus, such as fractures or dislocations, can occur due to various reasons, including trauma, overuse, or disease. These injuries can lead to pain, difficulty in walking, and other complications.

See also

• Metatarsal bones
• Foot
• Anatomy

References

Metatarsus Resources
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