Dorsiflexion
Dorsiflexion
Dorsiflexion (pronounced: dor-si-flex-shun) is a term used in anatomy and physiology to describe a specific movement of the foot.
Etymology
The term "dorsiflexion" comes from the Latin words "dorsum" meaning back, and "flexion" meaning bending.
Definition
Dorsiflexion is the action of raising the foot upwards towards the shin, decreasing the angle between the dorsum (top side) of the foot and the leg. This movement occurs at the ankle joint and is controlled by the muscles in the anterior compartment of the leg, including the tibialis anterior, extensor hallucis longus, and extensor digitorum longus.
Related Terms
- Plantarflexion: The opposite movement to dorsiflexion, where the foot is pointed downwards increasing the angle between the foot and the leg.
- Flexion: A movement that decreases the angle between two body parts.
- Extension: A movement that increases the angle between two body parts.
- Ankle joint: The joint at which dorsiflexion and plantarflexion occur.
- Tibialis anterior: The muscle primarily responsible for dorsiflexion.
- Extensor hallucis longus: A muscle that assists in dorsiflexion.
- Extensor digitorum longus: A muscle that assists in dorsiflexion.
External links
- Medical encyclopedia article on Dorsiflexion
- Wikipedia's article - Dorsiflexion
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