Except within joint cavities, the superficial layer of compact bone that covers

Question

Except within joint cavities, the superficial layer of compact bone that covers all bones is wrapped by a A) endosteum The process of remodeling continuously recycles & renews the components of the bone matrix. Bone remodeling- A) organic; goes on B) organic; does not go on C) inorganic; goes on D) inorganic; does not go on Normal bone growth & maintenance depend on a combination of nutritional & A) inorganic 7. B) exosteum C) periosteumD) trabeculae 8. a mineral throughout life. 9. factors. B) organic C) hormonal D) vitamin E) mineral 10. The bones of the skeleton become thinner & weaker as a normal part of the aging process. Inadequate ossification is called A) a fracture B) Ricketts C) osteoclastosisD) osteopenia fractures project through the skin. A) Closed B) Open c)Compact D) Compression E) Comminuted

Explanation / Answer

7. C. Periosteum: it is a highly-vascularized, dense connective tissue covering the bone surface except at the joints.

8. A. Organic, goes on: Bone re-modeling involves both the organic and inorganic (mineral) content. It continues lifelong.

9. C. Hormonal: The factors that influence bone growth and maintenance can be classified as nutritional and hormonal.

10. D. Osteopenia: When the rate of bone resorption (osteoclastosis) exceeds new bone formation (osteoblastosis), it results in bones with low mineral density; this is called osteopenia.

11. B. Open: An open fracture, also called compound fracture, is one, where the broken bone has become exposed due to a breach in integrity of the skin (and hence, "open").

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