Term
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Definition
| a condition in which bone mass is reduced and develops pores in bones. Osteomyelitis is a painful infection of the bone |
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Term
| What Provides the template of the eventual mature bone? |
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Definition
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A cartilage model provides the template of the eventual mature bone. |
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Term
| What does the Parathyroid hormone stimulate? |
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Definition
| Parathyroid hormone stimulates osteoclast activity when the calcium level in the blood is low. |
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Term
| Which bones develop from membranes? |
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Definition
| Some skull bones, part of the mandible, and the diaphyses of the clavicles develop from membranes. |
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Term
| What are located in the central canal of the osteon? |
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Definition
| Blood vessels run through the central canal of the osteon. |
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Term
| Where are Osteocytes located? |
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Definition
| Osteocytes are located in the lacunae. |
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Term
| What functions to decrese the calcium ion in the blood? |
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Definition
Calcitonin
stimulates osteoblast activity by drawing calcium ions from the blood and depositing them in the bone tissues. |
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Term
| What is Vitamin D necessary for? |
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Definition
| Vitamin D is necessary for absorption and transport of calcium and phosphate ions. |
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Term
| Is Osseous tissue vascular? How does it heal? |
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Definition
| Osseous tissue is very vascular and heals readily. |
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Term
| What does Appositiona growth add? |
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Definition
| Appositional growth adds girth to the cartilage. |
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Term
| Why is are metacarpales long bones? |
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Definition
| Because their length is greater than width, metacarpals are long bones. |
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Term
| Why does an increase in parathyroid hormone cause bones to become porous and brittle? |
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Definition
| PTH targets bone and liberates calcium into the blood. |
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