Humerus vs. Femur: What’s the Difference?

Main Difference

The main difference between Humerus and Femur is that the Humerus is a long bone of the upper arm and The femur bone , the largest bone of the human body and it is also called strongest and heavy bone of the human body

• Humerus

  The humerus (, plural: humeri) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a rounded head, a narrow neck, and two short processes (tubercles, sometimes called tuberosities). The body is cylindrical in its upper portion, and more prismatic below. The lower extremity consists of 2 epicondyles, 2 processes (trochlea & capitulum), and 3 fossae (radial fossa, coronoid fossa, and olecranon fossa). As well as its true anatomical neck, the constriction below the greater and lesser tubercles of the humerus is referred to as its surgical neck due to its tendency to fracture, thus often becoming the focus of surgeons.

• Femur

  The femur (, pl. femurs or femora ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates. The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia (shinbone) and patella (kneecap), forming the knee joint. By most measures the two (left and right) femurs are the strongest bones of the body, and in humans, the longest.

• Humerus (noun)

  The bone of the upper arm.

• Femur (noun)

  A thighbone.

• Femur (noun)

  The middle segment of the leg of an insect, between the trochanter and the tibia.

• Femur (noun)

  A segment of the leg of an arachnid.

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