Healthcare Library

Spanish Version
Print-Friendly
Bookmarks
bookmarks-menu

Long bones

Long bones are hard, dense bones that provide strength, structure, and mobility. The thigh bone (femur) is a long bone. A long bone has a shaft and two ends.

Some bones in the fingers are classified as long bones, even though they are short in length. This is due to the shape of the bones, not their size.

Long bones contain yellow bone marrow and red bone marrow, which produce blood cells.

References

Silverstein JA, Moeller JL, Hutchinson MR. Common issues in orthopedics. In: Rakel RE, Rakel DP, eds. Textbook of Family Medicine. 9th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 30.

Standring S. Functional anatomy of the musculoskeletal system. In: Standring S, ed. Gray's Anatomy: The Anatomical Basis of Clinical Practice. 41st ed. Philadelphia, PA: Elsevier; 2016:chap 5.

    • Long bones

      Long bones - illustration

      A long bone is a bone that has a shaft and 2 ends and is longer than it is wide. Long bones have a thick outside layer of compact bone and an inner medullary cavity containing bone marrow. The ends of a long bone contain spongy bone and an epiphyseal line. The epiphyseal line is a remnant of an area that contained hyaline cartilage that grew during childhood to lengthen the bone. All of the bones in the arms and legs, except the patella, and bones of the wrist, and ankle, are long bones.

      Long bones

      illustration

      • Long bones

        Long bones - illustration

        A long bone is a bone that has a shaft and 2 ends and is longer than it is wide. Long bones have a thick outside layer of compact bone and an inner medullary cavity containing bone marrow. The ends of a long bone contain spongy bone and an epiphyseal line. The epiphyseal line is a remnant of an area that contained hyaline cartilage that grew during childhood to lengthen the bone. All of the bones in the arms and legs, except the patella, and bones of the wrist, and ankle, are long bones.

        Long bones

        illustration

      Review Date: 8/26/2017

      Reviewed By: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

      The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
      adam.com

       
       
       

       

       

      A.D.A.M. content is best viewed in IE9 or above, Firefox and Google Chrome browser.
      Content is best viewed in IE9 or above, Firefox and Google Chrome browser.

      ways to give

      view all

      news room

      view all

      healthcare library

      view all
      Event Calendar

      Hunterdon Healthcare offers an array of educational events, including childbirth, healthy living and fitness classes.

      LEARN MORE
      Health and Wellness Centers

      Where health and fitness meet to help you stay healthy at every age.

      LEARN MORE
      Heart & Vascular

      Heart and Vascular Services Department brings world-class cardiovascular care to our community.

      LEARN MORE