fHE ARTICULATIONS OF THE LOWER LIMB 



241 



: The tibia 



Groove for the tendon of the 

 tibialis posticus muscle 



Sulcus malleolaris 



Internal malleplus 



Malleolus medialis~~~ 

 Superior articular surface 



of the astragalus 

 Fades superior trochleas tali 



Posterior astragalotibial portion of the Internal 



lateral, or deltoid, ligament of the ankle-joint(i) 



Calcaneotibial portion of the internal lateral 



or deltoid, ligament of th ankle-joint (2) 



Inner tubercle of the posterior process - 



of the astragalus (3) 

 Groove cf the tendon of the flexor 

 longus hallucis muscle 



Sulcus m. flexoris hallucis longi 

 Sustentaculum tali 

 Sustentaculum tali 



InteroBseous membrane, or ligament, 

 of the leg 



Membrana interossea cruris 



Posterior inferior tibiofibular ligament 

 Lig. malleoli lateralis posterius 



Posterior band, or astragalofibular 



portion, of the external lateral 

 .,,-.' ligament of the ankle joint 

 Lig. talofibulare posterius 

 Groove for the tendons of the peroneus 



longus and peroneus brevis muscles 

 .-External malleolus Malleolus lateralis 



Middle band, or calcaneofibular 

 portion, of the external lateral 



ligament of the ankle-joint 



Lig. calcaneofibulare 



^~Astragalocalcaneal articulation 



Articulatio talocalcanea 

 'Capsular ligament 

 Capsula articularis 



Tuberosity of the os calci? .... 

 Tuber calcanei 



(1) Lig. talotibiale posterius 



(2) Lig. calcaneotibiale 



(3) Tuberculum mediate processus posterioris tali 



FIG. 480. ARTICULATIONES TALOCRURALIS ET TALOCALCANEA, THE ANKLE-JOINT AND THE ASTRAGA- 

 LOCALCANEAL ARTICULATION ; SYNDESMOSIS TlBIOFIBULARIS, THE INFERIOR TlBIOFIBULAR 

 ARTICULATION : LIGAMENTUM MALLEOLI LATERALIS POSTERIUS, THE POSTERIOR INFERIOR 

 TIBIOFIBULAR LIGAMENT. THE POSTERIOR PORTIONS OF THE LATERAL LIGAMENTS : 

 LIGAMENTUM TALOTIBIALE POSTERIUS, THE POSTERIOR ASTRAGALOTIBIAL PORTION OF THE 

 INTERNAL LATERAL, OR DELTOID, LIGAMENT OF THE ANKLE-JOINT; LIGAMENTUM CALCANEO- 

 TIBIALE, THE CALCANEOTIBIAL PORTION OF THE INTERNAL LATERAL, OR DELTOID, LIGAMENT 

 OF THE ANKLE-JOINT; LIGAMENTUM TALOFIBULARE POSTERIUS, THE POSTERIOR BAND, OR 

 ASTRAGALOFIBULAR PORTION, OF THE EXTERNAL ' LATERAL LIGAMENT OF THE ANKLE-JOINT ; 

 LIGAMENTUM CALCANEOFIBULARE, THE MIDDLE BAND, OR CALCANEOFIBULAR PORTION, OF THE 

 EXTERNAL LATERAL LIGAMENT OF THE ANKLE-JOINT. (THE ANKLE-JOINT AND THE ASTRAGALO- 

 CALCANEAL ARTICULATION OF THE RlGHT LEG, SEEN FROM BEHIND.) 



The thin posterior portion of the capsule of the ankle-joint has been removed The posterior portion 

 of the capsule of the astragalocalcaneal articulation has been separated from its attachment to 

 the astragalus external to its attachment to the posterior process of that bone, and turned back- 

 wards on to the os calcis. 



Articulationes pedis The articulations of the foot. 



