THE BONES OF THE LOWER EXTREMITY 99 



The Patella or Knee-cap. This is a flat, triangular 

 bone, situated at the anterior part of the knee-joint. 

 It is usually regarded as a sesamoid bone, developed 

 in the quadriceps extensor tendon (formed by the 

 rectus femoris, the vastus internus and externus, and 

 the crureus muscles). 



The patella can always be felt beneath the skin and 

 fascia. 



The right patella, ventral surface. (Testut.) 



APEX 



The right patella, dorsal surface. (Testut.) 



Bones of the Leg. The bones of the leg are two, 

 the tibia and fibula. 



The Tibia. This is situated at the inner and front 

 part of the' leg/ It is the longest, ai-.o. largest bone 



