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8 Cards in this Set
- Front
- Back
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Which bones of the body develop by endochondral ossification?
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Pretty much everything below the skull, with the exception of the clavicle.
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What feature of endochondral ossification is ALWAYS at the beginning of the process?
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Formation of the hyaline cartilage "template".
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After the hyaline cartilage model is created, how does the bone begin to grow?
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By interstitial (growth by length) and appositional growth (growth by width), from the center of the bone.
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What are the zones of bone growth by length?
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Zone of resting cartilage.
Zone of proliferating cartilage. Zone of hypertrophic cartilage. Zone of calcified cartilage. |
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When does bone growth stop?
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Depends on the bone. Key is the cartilage. Bone and cartilage grow at the same time. When bone growth overcomes cartilage, and cartilage is completely consumed, growth stops. [Rachel noted that this is a good trick question!]
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What is the name of the zone of hyaline cartilage that is analogous to the basement membrane of the dermis?
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Zone of resting cartilage. Resting because cells do not function in bone growth. They anchor the epiphyseal plate to the epiphysis of the bone.
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What is the name of the tissue that anchors to the zone of resting cartilage?
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Zone of proliferating cartilage. These cells divide to replace those that die at the diaphyseal side of the epiphseal plate.
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During bone growth, what zone consists of large, maturing chondrocytes arranged in columns?
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Zone of hypertrophic cartilage.
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