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[edit | edit source]
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[edit | edit source]
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[edit | edit source]
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[edit | edit source]
See also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD