Ankle joint allows for plantarflexion and dorsiflexion from "summary" of Bd Chaurasia's Human Anatomy, Volumes 3 & 4 by B. D. Chaurasia
The ankle joint is a synovial hinge joint that allows for movement in the sagittal plane. It is formed by the articulation of the tibia, fibula, and talus bones. The primary movements that occur at the ankle joint are dorsiflexion and plantarflexion. Dorsiflexion is the movement that brings the dorsum of the foot closer to the anterior aspect of the leg. This movement is controlled by the muscles located on the anterior aspect of the leg, such as the tibialis anterior muscle. When the tibialis anterior muscle contracts, it pulls the foot upwards, allowing for dorsiflexion at the ankle joint. On the other hand, plantarflexion is the movement that brings the sole of the foot closer to the posterior aspect of the leg. This movement is controlled by the muscles located on the posterior aspect of the leg, such as the gastrocnemius and soleus muscles. When these muscles contract, they pull the foot downwards, allowing for plantarflexion at the ankle joint. The ability of the ankle joint to perform dorsiflexion and plantarflexion is essential for various activities such as walking, running, jumping, and standing on tiptoes. Dorsiflexion helps in lifting the foot off the ground during the swing phase of walking, while plantarflexion helps in pushing off the ground during the propulsion phase of walking.- The ankle joint is a crucial joint that allows for dorsiflexion and plantarflexion movements. These movements are controlled by the muscles located on the anterior and posterior aspects of the leg, respectively. The coordination of these movements is essential for proper gait and other daily activities.
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