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What connects the blood and nerve supply in the periosteum to the Haversian canal?
What is the structural function of trabeculae?
They align themselves against lines of stress to resist stress
What is the main function of the inorganic components of bone?
hardness and resistance to compression
What are nutrient foramina?
The path by which the periosteum is supplied with nerve fibers, blood and lymph vessels
What is the blood supply of long bones?
diaphyseal nutrient artery; metaphyseal and epiphysial arteries; periosteal arteries
What is the blood supply of irregular, short, and flat bones?
periosteal arteries and nutrient arteries feeding the medullary bone
What is the hormonal mechanism for the storage of Ca?
When Ca increases in the blood, the thyroid produces calcitonin to stimulate calcium salt deposits
What is the hormonal mechanism for the resorption of Ca?
When Ca falls in the blood, the parathyroid produces PTH which signals the osteoclasts to breakdown the bone matrix, releasing CA into the blood
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