Medical Definition of Bone, thigh

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Bone, thigh: The thigh bone in anatomy is called the "femur." Whichever term -- thigh bone or femur -- you care to use, it is the bone in the leg that extends from the hip to the knee.

The thigh bone/femur constitutes the entire upper leg, all of the leg above the knee. As compared to the lower leg which boasts two bones (the tibia and the fibula), the upper leg has only one bone, the femur, but a very large bone it is, the largest in the human body.

The word "femur" is the Latin word for thigh.

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Reviewed on 12/27/2018

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