Bone Remodeling Flashcards

1
Q

bone remodeling

A

ongoing replacement of old bone tissue by new bone tissue

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2
Q

calcium

A

mineral needed to form the extracellular matrix in bone; found in dairy products, beans, seeds & leafy greens

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3
Q

bone remodeling before age 25

A

stage in life in which osteoblast activity & bone formation is more prevalent than osteoclast activity & bone resorption

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4
Q

bone remodeling after age 50

A

stage in life in which osteoclast activity & bone resorption is more prevalent than osteoblast activity & bone formation

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5
Q

osteoblast

A

bone forming cells

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6
Q

osteoclast

A

Bone-destroying cells

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7
Q

factors that increase osteoblast activity/decrease osteoclast activity

A

gravity; exercise; excess calcium in the blood

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8
Q

factors that increase osteoclast activity/decrease osteoblast activity

A

zero gravity; immobility; loss of calcium in the blood

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