Interstitial Growth · Histology

Which of the following is an example of interstitial growth in fibrocartilage?

  1. Mitotic division of fibroblasts in the perichondrium
  2. Chondrocyte division in rows amid collagen bundles
  3. Formation of a bony collar around the diaphysis
  4. Growth of the epidermis over the cartilage
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Correct answer: Chondrocyte division in rows amid collagen bundles

In fibrocartilage, such as in the intervertebral discs, chondrocytes often appear in long rows. These rows are formed by interstitial growth constrained by the dense bundles of Type I collagen fibers.

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