. Anatomy, descriptive and applied. Anatomy. 342 THE ARTICULATIONS, OB JOINTS The posterior inferior ligament (ligamentum malleoli lateralis posterius) (Fig. 276), smaller than the preceding, is disposed in a similar manner on the posterior surface of the articulation. The inferior transverse ligament lies under cover of the posterior ligament, and is a strong, thick band of yellowish fibres which passes transversely across the back of the joint, from the external malleolus to the posterior border of the articular surface of the tibia, almost as far as its malleolar process. This ligament proj
. Anatomy, descriptive and applied. Anatomy. 342 THE ARTICULATIONS, OB JOINTS The posterior inferior ligament (ligamentum malleoli lateralis posterius) (Fig. 276), smaller than the preceding, is disposed in a similar manner on the posterior surface of the articulation. The inferior transverse ligament lies under cover of the posterior ligament, and is a strong, thick band of yellowish fibres which passes transversely across the back of the joint, from the external malleolus to the posterior border of the articular surface of the tibia, almost as far as its malleolar process. This ligament projects below the margin of the bones, and forms part of the articulating surface for the astragalus. The inferior interosseous ligament (Fig. 274) consists of numerous short, strong, fibrous bands which pass between the contiguous rough surfaces of the tibia and fibula, and constitute the chief bond of union between the bones. This ligament is continuous above with the interosseous membrane. Synovial Membrane.—The synovial membrane lining the articular surface is derived from that of the ankle-joint (Fig. 274). Movements.—The movement permitted in these articulations is limited to a very slight gliding of the articular surfaces one upon another. IV. The Tibiotarsal Articulation, or Ankle-joint (Articulatio Talocruralis) (Figs. 273, 274). The ankle is a ginglymus or hinge-joint. The bones entering into its forma- tion are the lower extremity of the tibia and its malleolus and the external malleolus of the fibula, which forms a mortise (Fig. 272) to receive the upper convex surface Tarsometatarsal articulations X. Tarsal articulations. Fig. 273.—Ankle-joint: tarsal and tarsometatarsal articulations. Internal view. Right of the astragalus and its two lateral facets. The bony surfaces are covered by hyaline cartilage and interconnected by a capsule (capsida articularis), which in places forms thickened bands constituting the following ligaments: Anterior. Posterior. Internal I^
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
