262 SURGICAL ANATOMY OF 



crucial, the anterior or external and the internal or pos- 

 terior, and the two interarticular semilunar fibro-carti- 

 lages. 



The synovial membrane of the knee-joint ascends up- 

 wards beneath the extensor muscles, as a pouch, for 

 about three inches, and is reflected from the articular 

 surfaces of the femur, to the crucial ligaments and ar- 



FIG. 44. 



Knee-joint opened vertically. 1. Tendon of quadriceps extensor. 2. Sub- 

 crureus. 3. Cut edge of synovial membrane. 4. Patella divided vertically. 

 5. Ligamentum mucosum. 6. Posterior crucial ligament. 7. Anterior ditto. 

 8. Adipose tissue. 9. Bursa beneatb ligameutum patellae. 10. Ligamentum 

 patellae. 



ticular surface of the tibia, enveloping the semilunar 

 cartilages, and at the back of the external, forms a pouch 

 between its surface and that portion of the tendon of the 

 popliteus which is within the capsule; it then lines the 

 capsular ligament. 



