

LIGAMENTS OP THE KNEE JOINT. 



753 



The ligamentum patellce (Fig. 245) is attached above to the 

 inferior end of the patella, and below to the tubercle of the 

 tibia. It consists of strong, A FIG. 245. B 



thick, broad and parallel 

 fibres, and is regarded as 

 a continuation of the ten- 

 don of the recti muscles. 

 Theligamentof Winslow, 

 or posterior ligament, is 

 situated on the posterior 

 part of the joint, and 

 forms a broad membra- 

 nous expansion from the 

 tendon of the semi-mem- 

 branosus muscle, reaching from the inner side of the head 

 of the tibia to the external condyle of the femur. 



The internal lateral ligament (Fig. 245) consists of a flat- 

 tened fasciculus of fibres which extend from the internal 

 condyle of the femur to the inner side of the head of the 

 tibia and semilunar cartilage. 



The external lateral ligament (Fig. 245) extends frequently 

 as a double cord from the outer side of the external condyle 

 to the head of the fibula. 



The anterior crucial ligament extends from the inner side 

 and posterior part of the external condyle, obliquely for- 

 ward and inward to the depression in front of the spine of 

 the tibia. 



The posterior crucial ligament (Fig. 246) extends from the 

 outer side and front of the inner condyle to the depression 

 on the back of the spine of the tibia. These crucial ligaments 



FIG. 245, A represents the ligaments upon the front and sides of the Knee 

 Joint, a Tendon of the quadriceps femoris muscle. 6 Patella, c Ligament of 

 patella, d d Synovial membrane, e Internal lateral ligament. / External 

 lateral ligament, g Ligament connecting the fibula with the tibia. 



FIG. 245, B represents the ligaments on the back part of the Knee Joint. 

 1 Ligament of Winslow. 2 Tendon of semi-membranosus muscle. 3 Its 

 insertion. 4 The portion of it which goes under the internal lateral ligament. 

 5 Internal lateral ligament. 6 External lateral ligament. 7 Fibres of exter- 

 nal lateral ligament. 8 Section of tendon of popliteus muscle. 9 Superior 

 posterior peroneo-fibial ligament. 

 48 



