Periosteum · Histology

The thickness of the periosteum varies across the skeleton. It is generally thickest in:

  1. Muscle and tendon attachment sites
  2. The small bones of the ear
  3. The endosteal surface of the marrow cavity
  4. The distal phalanges
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Correct answer: Muscle and tendon attachment sites

Periosteum is thicker in areas subject to high mechanical stress or where tendons and ligaments exert significant pull on the bone surface, requiring more robust anchoring.

Difficulty: Medium Question 18 of 20

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