Describe where and how dorsiflexion and plantar flexion occur. Which muscle is the prime mover of plantar flexion and which muscle do you think is its antagonist?
What will be an ideal response?
Dorsiflexion and plantar flexion are special actions occurring at the ankle joint. Dorsiflexion is accomplished by lifting your foot so that its superior surface moves toward the shin while plantar flexion is accomplished by depressing the foot (pointing the toes or "planting" the toes toward the ground). Gastrocnemius is the prime mover of plantar flexion; tibialis anterior antagonizes the action of gastrocnemius since it performs dorsiflexion.
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