Plantarflexion
Plantarflexion
Plantarflexion (pronounced: plan-tar-flex-shun) is a term used in anatomy and physiology to describe the movement of the foot that flexes the foot or toes downward toward the sole.
Etymology
The term "plantarflexion" is derived from the Latin words "planta" meaning "sole" and "flexion" meaning "a bending".
Definition
Plantarflexion is the movement that increases the approximate 90-degree angle between the front part of the foot and the shin. This is the action of pointing the toes or stepping on the gas pedal. It is the opposite of dorsiflexion, which is the movement that decreases this angle, pulling the toes up towards the shin.
Related Terms
- Ankle: The joint connecting the foot with the leg, which allows plantarflexion to occur.
- Dorsiflexion: The opposite movement to plantarflexion, involving the lifting of the foot so that its superior surface approaches the shin.
- Flexion: A position that is made possible by the joint angle decreasing.
- Gastrocnemius: The large muscle at the back of the lower leg that is responsible for plantarflexion.
- Soleus: A powerful muscle in the back part of the lower leg (the calf), also responsible for plantarflexion.
See Also
External links
- Medical encyclopedia article on Plantarflexion
- Wikipedia's article - Plantarflexion
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