GENERAL HISTOLOGY

Detailed explanation-1: -The thigh bone, or femur, is the large upper leg bone that connects the lower leg bones (knee joint) to the pelvic bone (hip joint).

Detailed explanation-2: -Fast facts about the humerus Your humerus is classified as a long bone. Other types of long bones include the radius and ulna in your forearm and the femur in your upper leg. Speaking of long, the humerus is the longest bone in your arm.

Detailed explanation-3: -femur, also called thighbone, upper bone of the leg or hind leg. The head forms a ball-and-socket joint with the hip (at the acetabulum), being held in place by a ligament (ligamentum teres femoris) within the socket and by strong surrounding ligaments.