Formation of cartilage bones involves:
Correct answer: A. Deposition of bony matter by osteoblasts and resorption by chondroclasts
- A. Deposition of bony matter by osteoblasts and resorption by chondroclasts
- B. Deposition of grey matter by osteoclasts
- C. Deposition of bony matter by osteoclasts only
- D. Deposition of bony matter by osteoblasts only
Explanation
The bone is an unusual tissue in that it is continually being reconstructed. The osteoblasts secrete bone matrix, whereas the large, much-branched, motile, lysosomerich, multinucleated cells, called osteoclasts, destroy bone matrix. The twin process of resorption and reconstruction enables a particular bone to remodel its structure to meet any change in the mechanical requirements of the animal during its development.
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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