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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 process of endochondral ossification, which converts the cartilage models into bone, begins by the twelfth week of embryonic development. At birth, ossification of much of the bone has occurred, but the hyaline cartilage of the epiphyseal plate will remain throughout childhood and adolescence to allow for bone lengthening.

  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. Chondrogenesis - Wikipedia

    en.wikipedia.org/wiki/Chondrogenesis

    Early in fetal development, the greater part of the skeleton is cartilaginous. This temporary cartilage is gradually replaced by bone (endochondral ossification), a process that ends at puberty. In contrast, the cartilage in the joints remains unossified during the whole of life and is, therefore, permanent.

  7. Today’s NYT ‘Strands’ Hints, Spangram and Answers for Sunday ...

    www.aol.com/today-nyt-strands-hints-spangram...

    According to the New York Times, here's exactly how to play Strands: Find theme words to fill the board. Theme words stay highlighted in blue when found.

  8. Bone - Wikipedia

    en.wikipedia.org/wiki/Bone

    This process includes the development of a cartilage model, its growth and development, development of the primary and secondary ossification centers, and the formation of articular cartilage and the epiphyseal plates. [44] Endochondral ossification begins with points in the cartilage called "primary ossification centers".

  9. Small business owners brace for Trump's proposed tariffs - AOL

    www.aol.com/small-business-owners-brace-trumps...

    Small businesses are bracing for stiff tariffs that President-elect Donald Trump has proposed as one of his first actions when he takes office. Trump has proposed importers pay a 25% tax on all ...