SPRINGER MEDIZIN / SCIENCE PHOTO LIBRARY SPRINGER MEDIZIN / SCIENCE PHOTO LIBRARY
Calf muscle. Computer artwork of an oblique posterior view of one of the muscles (red) of the calf and its tendons (white) and attachments to the bones of the leg and foot. This is the flexor hallucis longus muscle, which originates from the rear of the fibula and ends in a tendon that passes over the inner side of the ankle and attaches to the distal phalanx of the big toe. This calf muscle is used to flex (bend) the big toe and help flex the ankle. The two bones of the lower leg are the tibia and fibula. Both legs show the knee cartilage, while the view at left includes some of the ligaments (white) of the knee and ankle joints.
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