THE LEG 



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parts, the upper or thigh, and the lower or leg. The 

 thigh consists of the longest and strongest bone in the 



PIG. 18. Bones of arm and leg ; Fe, femur; Fi, fibula ; H, humerus ; P, patella ; 

 R, radius ; T, tibia ; U, ulna. 



human body, the femur. The leg, like the forearm, 

 has two parallel bones, the tibia, which is its main bone ; 



