Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
The soleus is a powerful muscle in the back part of the lower leg (calf), situated beneath the gastrocnemius muscle. It is important for standing and walking as it helps to flex the foot at the ankle.
A large muscle located on the back of the lower leg that works with the soleus to flex the ankle and knee.
Achilles tendon: A tough band of fibrous tissue that connects the calf muscles, including the soleus, to the heel bone, enabling movement.
Plantar flexion: The movement of pushing down against the ground with your foot, an action primarily facilitated by contraction of the soleus and gastrocnemius muscles