The Neck ( collum femoris).-The neck is a flattened pyramidal process of bone, connecting the head with the body, and forming with the latter a wide angle opening medialward. Its surface is smooth, coated with cartilage in the fresh state, except over an ovoid depression, the fovea capitis femoris, which is situated a little below and behind the center of the head, and gives attachment to the ligamentum teres.

The Head ( caput femoris).-The head which is globular and forms rather more than a hemisphere, is directed upward, medialward, and a little forward, the greater part of its convexity being above and in front. 243).-The upper extremity presents for examination a head, a neck, a greater and a lesser trochanter. The Upper Extremity ( proximal extremity, Fig. The femur, like other long bones, is divisible into a body and two extremities. The degree of this inclination varies in different persons, and is greater in the female than in the male, on account of the greater breadth of the pelvis. In the erect posture it is not vertical, being separated above from its fellow by a considerable interval, which corresponds to the breadth of the pelvis, but inclining gradually downward and medialward, so as to approach its fellow toward its lower part, for the purpose of bringing the knee-joint near the line of gravity of the body. 244, 245), the longest and strongest bone in the skeleton, is almost perfectly cylindrical in the greater part of its extent.

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