Bone Tissue: General Structure

by Geoffrey Meyer, PhD

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    In this lecture, I am going to talk about bone. But I am going to concentrate on mature bone and the function of mature bone. In a later lecture, I am going to talk about bone formation and bone growth. Bone is a very specialized connective tissue. Like all connective tissues, it is composed of cells, fibres and matrix. But in the case of bone, the matrix is calcified. And because of that it enables bone to have some very important functions in the body. It can protect vital organs of the body, the thoracic cavity protects the heart and the lungs. The cranium protects the brain. Bone always forms the skeletal components of the body and in unison with the muscle affects movement of the body. It is also a very important mineral reserve for both calcium and phosphate and it provides a compartment for bone marrow to form blood cells. I am going to talk about these latter functions in a lecture later on. Let us look at really what I want you to understand with this initial lecture on bone. First of all, I want you to appreciate that there are two types of bone, compact bone and spongy bone. And I will describe these two types during this lecture. The very fundamental structural unit of bone is the osteon and I will also describe that and its something that you really should understand because it will explain to you really how bone forms its functional role in the body. And equally important you must understand how bone cells receive their nutrients. As I said earlier, the matrix is very hard. It is calcified. Unlike other connective tissues such as loose connective tissue or even cartilage, there is no aqueous component of the extracellular matrix. So nutrients...

    About the Lecture

    The lecture Bone Tissue: General Structure by Geoffrey Meyer, PhD is from the course Bone Tissue. It contains the following chapters:

    • Bone: General structure
    • Different types of bone
    • The osteon
    • How do osteocytes receive their nutrients?

    Included Quiz Questions

    1. compact bone
    2. spongy bone
    3. trabeculae of bone
    4. spicules or bone
    1. lines all the internal surfaces of bone
    2. is immature bone
    3. lines the outside surface of bone
    4. cannot repair bone
    5. only lines the medullary cavity of mature bone
    1. Interstitial lamellae
    2. Concentric lamellae
    3. Endosteum
    4. Haversian canal
    5. Canaliculi

    Author of lecture Bone Tissue: General Structure

     Geoffrey Meyer, PhD

    Geoffrey Meyer, PhD

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    By Ali M. on 03. May 2017 for Bone Tissue: General Structure

    Thanks so much prof. Meyer I wish you all the best. Enjoy your life you are great sir.