V OHAP. iv.] THE SKELETON OF THE LIMBS. 



Ill 



^ On the two sides of tlie proximal end of the tihia are two projec- 

 tions, respectively supporting the coudyles, and called the external 



A. Inner surface. 



Fig. 71. THE RIGHT TIBIA. 

 B. Its proximal end. 



C. Its distal end. 



EXPLANATION OF LETTERS IN FIGS. 69, 70, AND 71. 



c. Crest. 



ec. External eondyle. 



em (Fig. 69, B). Is the external malleolus, the 

 hinder surface of which is grooved for the 

 tendon of the peroneus brevis muscle. 



em (Fig. 70, B). Is that surface of the external 

 malleolus, which articulates with the fibula. 



ft. External tuberosity. 



i,. Flattened surface for fibula below. 



ft. Surface for fibula above. 



ic. Internal eondyle. 



im. Internal malleolus. 



is. Inner surface for astragalus. 



it. Internal tuberosity. 



os. Outer surface for astragalus. 



p. Descending process. 



t. Tuberosity. 



Between im and p (Fig. 70, A) is the groove for 



the tendon of the flexor longus hallucis 



muscle. 





and internal tubwoaifics (ct and it). The external one presents 

 beneath a very small elongated surface for articulation with the 

 upper part of the lihula (/v). 



