Long bone structure

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12 Terms

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proximal epiphysis

top bulb of the bone

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distal epiphysis

bottom bulb of the bone

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metaphysis

the “wrist” of either bulb and the shaft

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diaphysis

the shaft/ body of the bone

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articular cartilage

cartilage covering part of the bulb helping it articulate (shows up blue)

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spongy bone

mostly in the epipysis / bulb. framework, resist forces from many directions and creates space for bone marrow

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epiphyseal line

aka sealed version of the epiphyseal plate, which is how the bone grows as we grow up and taller

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medullary cavity

this is where red and yellow hone marrow are housed

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periosteum

dense irregular connective tissue which attaches to the bone my perforating fibers made of collagen. it has blood vessels and nerves

it’s an attachment point and nourishes the bone

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endosteum

membrane that lines the internal surface of the bone(lines the medullary cavity)

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yellow marrow

connective tissue with adipocytes that store triglycerides (fat storage)

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compact bone

tightly packed circular structures called osteons , the hard and strong external layer of bone