THE KNEE-JOINT 149 



The Bursse related to the Joints are arranged as follows : 

 7. Anterior Bur see 



PREPATELLAR 



1. Subcutaneous. 



2. Subfascial. 



3. Subaponeurotic. 



PRETIBIAL 



1. One in front of the 

 tubercle of the tibia. 



2. One between the liga- 

 mentum patellae and the 

 tubercle of the tibia. 



3. Subpatellar. 



//. Subcrural Bitrx<r 



III. Lateral Bursce 



INTERNALLY 



1. Beneath the inner head 

 of the gastrocnemius. 



2. Beneath the semimem- 

 branosus. 



3. Between the semimem- 

 branosus and semitendinosus. 



EXTERNALLY 



1. Beneath the outer head 

 of the gastrocnemius. 



2. Beneath the tendon of 

 the popliteus. 



3. Between the tendon of 

 the popliteus and the external 

 lateral ligament. 



4. Bicipital, between the 

 biceps, fibula, and external 

 lateral ligament. 



The nerves are from the obturator, anterior crural, by 

 branches to the vastus externus, internus, and crureus, external 

 and internal popliteal, three branches from each, and some- 

 times the great sciatic. 



The arteries are: The anastomotica magna of the femoral, 

 five articular of the popliteal, anterior tibial recurrent, posterior 

 tibial recurrent, and a descending branch from the external 

 circumflex. 



Movements to be considered are those between each condyle 

 and tibia, between the femur and patella. It is a hinge, and 

 owes its special motions to peculiarity of ligaments rather 

 than to conformation of bone, as in the case of the elbow. 

 Flexion and extension have a maximum of 140 degrees; flexion 



