Fibularis longus
The muscle becomes a tendon that wraps around and behind the lateral malleolus of the ankle, then continues under the foot to attach to the medial cuneiform and first metatarsal.Between the muscle's attachments to the head and body of the fibula, there is a gap through which the common fibular nerve passes to the front of the leg.[2] The fibularis longus muscle is supplied by the superficial fibular nerve, which arises from the fifth lumbar and first sacral roots of the spinal cord.It opposes the tibialis anterior and the fibularis tertius, which pull the foot upward toward the body (dorsiflexion).In medical terminology, the word refers to being of or relating to the fibula or to the outer portion of the leg.