noun. the muscle in the back part of the leg that forms the greater part of the calf; responsible for the plantar flexion of the foot.
- skeletal muscle
- gastrocnemius muscle
Sentences with gastrocnemius
1. Noun, singular or mass
The heel bone also connects to the Achilles tendon, which runs up the back of the calf where it connects to the gastrocnemius and is flanked on either side by the smaller soleus muscles.