. Cunningham's Text-book of anatomy. Anatomy. THE TALUS. 25> the dorsal surface of the sustentaculum tali of the calcaneus. Posteriorly the body is provided with two tubercles, separated by a groove; the lateral of these (processus posterior tali) is usually the larger, and is occasionally a separate ossicle (os trigonum). To it is attached the posterior talo-fibular ligament of the ankle- joint. The groove, which winds obliquely from above downwards and medially over the posterior surface of the bone, lodges the tendon of the flexor hallucis longus muscle. The head, of oval form, is direct
. Cunningham's Text-book of anatomy. Anatomy. THE TALUS. 25> the dorsal surface of the sustentaculum tali of the calcaneus. Posteriorly the body is provided with two tubercles, separated by a groove; the lateral of these (processus posterior tali) is usually the larger, and is occasionally a separate ossicle (os trigonum). To it is attached the posterior talo-fibular ligament of the ankle- joint. The groove, which winds obliquely from above downwards and medially over the posterior surface of the bone, lodges the tendon of the flexor hallucis longus muscle. The head, of oval form, is directed forwards and medially. Its anterior surface Abductor digiti qninti (origin) Quadratns plantae^ (originf- |m Lout; and short plantar j lflj||. ligaments i JfiliEu Tibialis posterior (part of insertion' Peronseus brevis (insertion) Flexor digiti quinti brevis (origin) Oblique bead of abductor hallucis (origin). Flexor digitorum brevis (origin) Abductor hallucis (origin) Attachments of plantar calcaneo- navicular ligament Flexor hallucis brevis (origin) Tibialis posterior (pr rt of insertion) Peronaeus longus (insertion) Tibialis anterior. (insertion) Fig. 256.—Muscle-Attachments to Left Tarsus ahd Metatarsus (Plantar Aspect). is convex from side to side and from above downwards, and articulates with the navicular bone (facies articularis navicularis). Inferiorly this surface is confluent with the middle calcanean facet, but in well-marked specimens, or when the bones are articulated, it will be seen that a small area in front of, and lateral to, the middle calcanean facet rests upon an articular surface on the dorsal surface of the anterior portion of the calcaneus, and is called the anterior calcanean facet (facies articularis calcanea anterior). On the medial and distal surface of the head there is a cartilage-covered surface which does not articulate with any bone, but rests on the dorso-lateral surface of the plantar calcaneo-navicular ligament, and is sup- ported on the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
