Final answer:
The term calcaneus refers to the heel bone, not the calf. Also, the largest muscle in the lower leg is the gastrocnemius, which is part of the calf muscles. The correct option is B. False.
Step-by-step explanation:
The anatomical term calcaneus refers to a specific bone in the body, not the calf. Therefore, the statement that the calcaneus refers to the calf is false. The calcaneus is actually the heel bone in the foot and is connected to the Achilles tendon, which in turn attaches to the calf muscles, namely the gastrocnemius and soleus muscles.
Regarding the largest muscle in the lower leg, the options provided are the soleus, gastrocnemius, tibialis anterior, and tibialis posterior.
The gastrocnemius is the muscle that is visible from the outside as it forms the rounded shape of the calf and is larger compared to the soleus. Therefore, option b, the gastrocnemius, is the correct answer for the largest muscle in the lower leg.