A network of tubules that runs through compact bone is called the
Correct answer: A. Haversian canal
- A. Haversian canal
- B. Periosteum
- C. Marrow
- D. Joint
Explanation
The correct answer is the Haversian canal. These canals are part of the microscopic structure of compact bone and facilitate the transportation of blood vessels and nerve fibers throughout the dense bone structure, communicating with osteocytes. The other options are not networks of tubules: the periosteum is a tissue layer on bones, marrow is the soft tissue inside bones, and a joint is where bones connect, allowing for movement.
This question appeared on the ETEA MDCAT 2011 paper, which you can sit online with every answer explained.
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The human skeleton provides support, protects organs, enables movement with muscles and stores minerals while bone marrow produces blood cells. Questions cover the axial and appendicular skeleton, types of bones and joints, cartilage, ligaments and tendons, and the difference between fixed, slightly movable and freely movable joints.
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