![]() ![]() Behind and beneath the articular surface is a rough depression, which gives attachment to the posterior talofibular ligament. The medial surface presents in front a smooth triangular surface, convex from above downward, which articulates with a corresponding surface on the lateral side of the talus. ![]() The lateral malleolus is found at the foot end of the fibula, of a pyramidal form, and somewhat flattened from side to side it descends to a lower level than the medial malleolus. Structures that pass behind medial malleolus deep to the flexor retinaculum: The major structure that passes anterior to the medial malleolus is the saphenous vein. The summit of the medial malleolus is marked by a rough depression behind, for the attachment of the deltoid ligament.The posterior border presents a broad groove, the malleolar sulcus, directed obliquely downward and medially, and occasionally double this sulcus lodges the tendons of the Tibialis posterior and Flexor digitorum longus.The anterior border is rough, for the attachment of the anterior fibers of the deltoid ligament of the ankle-joint.The lateral or articular surface is smooth and slightly concave, and articulates with the talus.The medial surface of this process is convex and subcutaneous.The medial surface of the lower extremity of tibia is prolonged downward to form a strong pyramidal process, flattened from without inward - the medial malleolus. The medial malleolus is found at the foot end of the tibia. The word malleolus ( / m ə ˈ l iː ə l ə s, m æ-/ ), plural malleoli ( / m ə ˈ l iː ə ˌ l aɪ, m æ-/), comes from Latin and means "small hammer". The lateral malleolus is the prominence on the outer side of the ankle, formed by the lower end of the fibula. The medial malleolus is the prominence on the inner side of the ankle, formed by the lower end of the tibia. Look up malleolus in Wiktionary, the free dictionary.Ī malleolus is the bony prominence on each side of the human ankle.Įach leg is supported by two bones, the tibia on the inner side (medial) of the leg and the fibula on the outer side (lateral) of the leg. ![]()
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