278 A MANUAL OF ANATOMY 



I!. Arm, Forearm, Thigh, and Leg. 



Humerus- - = Femur. 



Absent - - = Patella. 



Radius - - = Tibia. 



Ulna - - = Fibula. 



Special Homologies of Humerus and Femur. 



Humerus, Femur. 



Great tuberosity - - = Small trochanter. 



Small tuberosity - - = Great trochanter. 



External epicondyle and \ _ internal condvle 



capitellum - - -/ ~ internal condyle. 



Internal epicondyle and \ t-. * i j i 



trochlea - - - ) = External condyle. 



III. Hand and Foot. 



Hand. Foot. 



Carpus - - - = Tarsus. 



Metacarpus - - = Metatarsus. 



Digital phalanges - ~ Digital phalanges. 



PoUex - - . = Hallux. 



Homologies of Carpus and Tarsus. 



Carpus. Tarsus. 



Scaphoid (except the part re- ^ 



presented by the embryonic I _ . , , 



supernumerary cartilage), T ~ ^ raga us. 



and semilunar - - • - j 



Cuneiform or pyramidal - - = Os calcis. 



(The pisiform is generally regarded as the rudiment of a suppressed digit.) 



The part of the scaphoid ] 



formed by the embryonic 'r = Navicular or scaphoid, 

 supernumerary cartilage - J 



(In apes and water- tortoises there is an additional carpal bone, called the 

 OS centrale, which represents the navicular of the tarsus.) 



Trapezium - - = Internal cuneiform. 



Trapezoid - - = Middle cuneiform. 



Os magnum - - = External cuneiform. 



Unciform - - = Cuboid. 



