ARTICULATIONS AND LIGAMENTS. 



127 



The internal lateral is a flat and broad ligament arising 

 from back part of inner condyle'of femur,, descends forward to 

 be inserted into inner tuberosity of tibia, covering in its course 

 the inferior internal articular artery and nerve, part of tendon 

 of semi-membranosus, and attaching itself to the internal semi- 

 lunar nbro-cartilage. 



The long external lateral ligament, round and strong, arises 

 from tuberosity on outer part of external condyle, and descends 

 forward to the head of fibula, The short external lateral liga- 

 ment is an accessory, not very constant, band, descending pos- 

 teriorly to the preceding. 



FIG 92. 



2, anterior crucial ligament; 3, 

 posterior crucial ligament; 4, trans- 

 verse ligament; 6, 7, internal and ex- 

 ternal semi-lunar cartilages; 8, liga- 

 menta patellae; 9, bursa patellae; 10, 

 anterior superior tibio-fibular liga- 

 ment. 



FIG. 93. 



2, quadriceps extensor; 3, patella; 

 4, ligamentum patellae; 6, bursa; 7, 

 8, 9, synovial membrane of knee-joint; 

 10, anterior crucial ligament. 



The capsular ligament fills up the intervals between the 

 preceding ligaments, and is strengthened by bands from fascia 

 lata, vasti, crureus, semi-membranosus, biceps, and sartorius 

 tendons. 



Internal Set. Crucial ligaments are two strong, short, 

 interosseous, crossing each other from before backward. The 

 anterior, or external, arises from inner posterior part of condyle 

 of femur, and descends forward and inward to be inserted into 

 front of spine of tibia and internal semi-lunar cartilage. 



The posterior, or internal, arises from outer fore part of 

 inner condyle of femur, descends downward, backward, and out- 

 ward to spine of tibia. 



