Gastrocnemius muscle insertion via the Achilles tendon. The plantaris muscle and a portion of its tendon run between the two muscles, which is involved in "locking" the knee from the standing position. Since the anterior compartment of the leg is lateral to the tibia, the bulge of muscle medial to the tibia on the anterior side is actually the posterior compartment. The soleus is superficial to the mid-shaft of the tibia. 10% to 30% of individuals have a sesamoid bone called the "fabella" in the lateral (outer) head of gastrocnemius muscle. Along with the soleus muscle, the gastrocnemius forms half of the
Bertram A. Bone capacity, he was responsible for the recruit training of all new marines on the West Coast of the United States. When Marine Corps Base San Diego was redesignated Marine Corps Recruit Depot in January 1948, Bone was appointed assistant chief of staff for operations and training. He served in this capacity until his retirement on June 30, 1949. Bone was advanced to the rank of brigadier general for having been specially commended in combat. He settled in his native San Diego and died on October 22, 1961. Bone is buried at Fort Sam Houston National Cemetery together with his wife,