66 



HUMAN ANATOMY. 



The superior expanded surface presents : 



Head, consisting of two lateral tuberosities, having each 

 upon their upper surfaces a smooth, concave, ovoidal articulating 

 facet for the condyles of the femur, separated by 



The spinous process of the tibia, in front and behind which 

 is impression for crucial ligaments, and laterally tubercles for 

 the extremities of the semi-lunar cartilages; 



FIG. 27. 



1, shaft of tibia; 2 and 3, inner and 

 outer tuberosities; 4, spine; 5, tuber- 

 cle; 6, crest or shin; 7, lower ex- 

 tremity; 8, internal malleolus; 9, 

 shaft of fibula; 10, head of fibula; 11, 

 external malleolus. 



1 and 2, articular surfaces; 3, in- 

 sertion of semi-membranosus; 5, ob- 

 lique line; 6, nutrient foramen; 7, 

 shaft of tibia; 9 and 14, grooves for 

 flexors; 13, external malleolus. 



Tubercle, on the anterior surface of the head, between the 

 tuberosities, for the insertion of ligamentum patellae; 



Popliteal notch, separating the tuberosities posteriorly, for 

 attachment of posterior crucial ligament; 



Transverse groove, on the posterior surface of the inner 

 tuberosity, for insertion of semi-membranosus tendon ; 



Facet, upon the posterior surface of the outer tuberosity, for 

 articulation of the heacl of the 



