110 



THE CAT. 



[CHAP. iv. 



wards, and so fits into the median articular surface at the lower end 

 of the front surface of the femur. 



em 



Fig. 69. THE RIGHT TIBIA AND FIBULA, SEEN 



IN FKONT. 



A. Tibia. B. Fibula. 



Fig. 70. THE RIGHT TIBIA AND FIBULA, SEEN 



BEHIND. 





A. The tibia. 



B. The fibula. 



It is attached ahove by its broad upper margin to the tendon of 

 the front muscle of the thigh. Below, a ligament goes from its 

 pointed lower end to the upper part of the shin-bone. 



15. The TIBIA, or shin-bone, is the absolutely longest bone in 

 the cat's skeleton. It transmits the weight of the hinder part of 

 the body from the thigh to the foot. 



Its upper end is very wide, and presents two articular surfaces 

 (condyles) which are each convex from before backwards, and 

 slightly concave from side to side (cc and ic), and which receive the 

 two condyles of the femur. Between these articular surfaces there 

 is a depression, or pit, giving insertion to one end of one of the 

 crucial Kgamcut* which connect the femur with the tibia. 



