Metatarsophalangeal joints

Metatarsophalangeal joints (MTP joints) are the joints between the metatarsal bones of the foot and the proximal phalanges of the toes. They are condyloid joints, meaning they allow movement in two planes.

Etymology

The term "metatarsophalangeal" is derived from the words "metatarsus" and "phalanx". "Metatarsus" is derived from the Greek "meta", meaning "after", and "tarsos", meaning "flat of the foot". "Phalanx" is derived from the Greek "phalanx", meaning "line of soldiers", as the bones are arranged in a line.

Anatomy

The metatarsophalangeal joints consist of the five long metatarsal bones of the foot and the proximal phalanges of the toes. Each joint is surrounded by a joint capsule and is reinforced by collateral ligaments. The joint surfaces are covered with hyaline cartilage.

Function

The metatarsophalangeal joints are important for walking and running. They allow the toes to flex and extend, and also allow some side-to-side movement. The joints also play a role in maintaining balance.

Related terms

• Metatarsus
• Phalanx (bone)
• Condyloid joint
• Hyaline cartilage

See also

• List of joints of the human body

References

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