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Lesson 5.2 Key Terms
Terms in this set (14)
A soft highly vascular modified connective tissue that occupies the cavities and cancellous part of most bones and occurs in two forms - yellow and red.
The continuous turnover of bone matrix and mineral that involves first, an increase in resorption and osteoclast activity, and later, reactive bone formation by osteoblast activity.
A polypeptide hormone especially from the thyroid gland that tends to lower the level of calcium in the blood plasma.
A growth of new bone tissue in and around a fractured area, ultimately replaced by mature bone.
A usually translucent somewhat elastic tissue that composes most of the skeleton of vertebrate embryos and except for a small number of structures (as some joints, respiratory passages, and the external ear) is replaced by bone during ossification in the higher vertebrates.
Bone tissue that contains few spaces between osteons; forms the external portion of all bones and the bulk of the diaphysis (shaft) of long bones.
The shaft of a long bone.
The end of a long bone, usually larger in diameter than the shaft.
The breaking of hard tissue (as bone).
A bone-forming cell.
Any of the large multinucleate cells closely associated with areas of bone resorption (as in a fracture that is healing).
Cell that is characteristic of adult bone and is isolated in a lacuna of the bone substance.
A hormone of the parathyroid gland that regulates the metabolism of calcium and phosphorus in the body.
Spongy (cancellous) bone
Bone tissue that consists of an irregular latticework of thin plates of bone called trabeculae; found inside short, flat, and irregular bones and in the epiphyses of long bone.
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