Final answer:
The gastrocnemius muscle is the major muscle in the back of the lower leg, specifically the calf area, playing a crucial role in leg movement.
Explanation:
Gastrocnemius is the major muscle located in the back of the lower leg, specifically the calf area. It is a large muscle with two bellies (medial and lateral heads) that inserts into the calcaneus bone of the foot via the Achilles tendon.
The soleus muscle is deep to the gastrocnemius and together they form the calf of the leg.
The gastrocnemius muscle, along with the soleus, plays a crucial role in activities like walking, running, and jumping.
Learn more about Human Anatomy here:
https://brainly.com/question/2007492
