. Quain's Elements of anatomy. e outer marginis convex, and inclined inwards pos-teriorly, thus making the surfacenarrower behind than iu front. Be-tween the upper and the external sur-faces posteriorly is a narrow trian-gular facet which plays againstthe transverse tibio-fibular capsule of the articulation isdivided into the following liga-ments :— The internal lateral or deltoidligament (fig. 221, 1) is a broadlayer of fibres, which radiate fromthe internal malleolus to the tarsalbones. The hinder part is thickand short, and descends from the notch at the lower border of the mal
. Quain's Elements of anatomy. e outer marginis convex, and inclined inwards pos-teriorly, thus making the surfacenarrower behind than iu front. Be-tween the upper and the external sur-faces posteriorly is a narrow trian-gular facet which plays againstthe transverse tibio-fibular capsule of the articulation isdivided into the following liga-ments :— The internal lateral or deltoidligament (fig. 221, 1) is a broadlayer of fibres, which radiate fromthe internal malleolus to the tarsalbones. The hinder part is thickand short, and descends from the notch at the lower border of the malleolus tothe inner surface of the astragalus. The fore part, thinner and more expanded,extends from the tip and .anterior border of the malleolus to the sustentaculumtali of the os calcis, the internal calcaneo-navicular ligament, and the dorsal surfaceof the navicular bone. The external lateral ligament (fig. 222, 4, 5, 6) consists of three distinctbands disposed in different directions. 1. The middle land descends from the. NT TUBERCLE GROOVE OF FLEX. LONG. Fig. 217.—The astragalus from above, showing thearticular surface and the attachments of the LATERAL LIGAMENTS OF THE ANKLE-JOINT. (Drawn by T. W. P. La-wrence.) | THE A^KLE-JOINT. 191 extremity of the fibula, to the external surface of the os calcis. 2. The anterior bandpasses obliquely forwards and in\Yards from the fore part of the outer malleolus tothe body of the astragalus in front of its external malleolar surface ; it is the shortestof the three. 3. The posterior band, the strongest of the three, passes almost Fif. 218.—The lower tibio-fibulak articulation akd akkle-joiNT FROM BEHIND. (Alleu Tliomson.) i 1, interosseous membrane ; 2. posterior ligament of the lower -ibio-fibular articulation ; 3. internal lateral ligament of the ankle-joint; 4, pos-terior, and 5, miiklle bands of the external lateral ligament of the ankle-joint ; 6, external, and 7, posterior astragalo-calcaneal ligaments. horizontally
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectanatomy
