122 OUTLINES OF ANATOMY. 



Internal ligaments : 



Anterior crucial ligament. 

 Posterior crucial ligament. 

 Interarticular or semilunar fibro-cartilages. 

 External semilunar cartilage. 

 Internal semilunar cartilage. 

 Transverse ligament. 

 Coronary ligaments. 

 Synovial membrane: (also, 1223-4). (11991200) 



Ligamentum mucosum. Alar ligaments. 

 Arterial supply. 

 Nerve-supply : 



Great sciatic. Anterior crural. Obturator. 

 Movements : 



Antero posterior spiral curve. 



Extension. Flexion. Pronation. 



Supination. Sliding movements. 



3. THE TiBio-FiBULAR UNION, 277-8-9. (281-2-3) 



(a) Superior tibio-fibular joint. 



(b) Middle tibio-fibular union. 



(c) Inferior tibio-fibular joint. 



(a) Superior tibio-fibular joint. 



Class Diarthrosis. Subdivision Arthrodia. 

 Capsular ligament. 

 Anterior tibio-fibular ligament. 

 Posterior tibio-fibular ligament. 

 Superior interosseous ligament. 

 Biceps tendon. 

 Synovial membrane. 

 Arterial supply. Nerve-supply. Movements. 



(b) Middle tibio fibular union. 

 The interosseous membrane. 



(c) Inferior tibio-fibular articulation. 



Class Diarthrosis. Subdivision Arthrodia. 

 Anterior inferior tibio-fibular ligament. 

 Posterior inferior tibio-fibular ligament. 

 Inferior interosseous ligament. 

 Transverse ligament. 

 Synovial membrane. 

 Nerve-supply. Movements. 



4. THE ANKLE-JOINT, 279-80-1-2 ; Figs. 253-4-5. (283-4-5) 



Class Diarthrosis. Subdivision Ginglymus. 

 Anterior ligament. 

 Posterior ligament. 

 Internal lateral or deltoid ligament. 

 External lateral ligament : 



Anterior fasciculus. Middle fasciculus. Posterior fasciculus. 

 Synovial membrane. 

 Nerve-supply. Arterial supply. 

 Movements. 



5. THE TARSAL JOINTS, 282 to 290 ; Figs. 253 to 258. (286 to 293) 



(a) Calcaneo-astragaloid union. 



(b) Articulations of the anterior portion of the tarsus. 



(c) Medio-tarsal joint. 



Synovial membranes in tarsus, 1241-2. (1217-18) 

 (a) Calcaneo-astragaloid union. 



Class Diarthrosis. Subdivision Arthrodia. 

 (i) Posterior calcaneo-astragaloid joint. 



Interosseous ligament, anterior interosseous ligament. 



External calcaneo-astragaloid ligament. 



Posterior calcaneo-astragaloid ligament. 



Internal calcaneo-astragaloid ligament. 



Synovial sac. 



Nerve-supply. Arteries. 



