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  2. Endochondral ossification - Wikipedia

    en.wikipedia.org/wiki/Endochondral_ossification

    A schematic for long bone endochondral ossification. In developing bones, ossification commences within the primary ossification center located in the center of the diaphysis (bone shaft), [5] where the following changes occur: The perichondrium surrounding the cartilage model transforms into the periosteum. During this transformation, special ...

  3. Ossification - Wikipedia

    en.wikipedia.org/wiki/Ossification

    Diagram showing stages of endochondral ossification. Endochondral ossification is the formation of long bones and other bones. This requires a hyaline cartilage precursor. There are two centers of ossification for endochondral ossification. The primary center. In long bones, bone tissue first appears in the diaphysis (middle of shaft).

  4. Development of joints - Wikipedia

    en.wikipedia.org/wiki/Development_of_joints

    The bones that form the base and facial regions of the skull develop through the process of endochondral ossification. In this process, mesenchyme accumulates and differentiates into hyaline cartilage, which forms a model of the future bone. The hyaline cartilage model is then gradually, over a period of many years, displaced by bone.

  5. Ossification center - Wikipedia

    en.wikipedia.org/wiki/Ossification_center

    An ossification center is a point where ossification of the hyaline cartilage begins. The first step in ossification is that the chondrocytes at this point become hypertrophic and arrange themselves in rows. [1] The matrix in which they are imbedded increases in quantity, so that the cells become further separated from each other.

  6. Bone healing - Wikipedia

    en.wikipedia.org/wiki/Bone_healing

    Secondary healing (also known as indirect fracture healing) is the most common form of bone healing. It usually consists of only endochondral ossification. Sometimes, intramembranous ossification occurs together with endochondral ossification. Intramembranous ossification, mediated by the periosteal layer of bone, occurs with the formation of ...

  7. 5 Items From the 1970s That Are Worth a Lot of Money - AOL

    www.aol.com/5-items-1970s-worth-lot-170007423.html

    Technically, anything over 20 years old can be coined “vintage.”But when you truly think of items worth this title, your brain doesn’t go to Beanie Babies.

  8. Bone remodeling - Wikipedia

    en.wikipedia.org/wiki/Bone_remodeling

    Bone tissue is removed by osteoclasts, and then new bone tissue is formed by osteoblasts. Both processes utilize cytokine (TGF-β, IGF) signalling.In osteology, bone remodeling or bone metabolism is a lifelong process where mature bone tissue is removed from the skeleton (a process called bone resorption) and new bone tissue is formed (a process called ossification or new bone formation).

  9. Here’s What to Say to Comfort Someone Who Just Had a ... - AOL

    www.aol.com/heres-comfort-someone-just-had...

    The first step is accepting accountability. You shoved your foot in your mouth—own that; don’t justify it. Use one of the above approaches to now say what you should have from the beginning.