BackStudy Guide: Skeletal System 2/3
Terms in this set (17)
Concentric lamella are layers of bony matrix arranged in rings around a central canal in an osteon.
Circumferential lamella are layers of bone matrix that run around the entire circumference of the diaphysis, providing strength and support.
Osteogenic cells are stem cells in bone that differentiate into osteoblasts for bone formation.
Osteoblasts are bone-forming cells that secrete osteoid, the organic matrix of bone.
Osteocytes are mature bone cells derived from osteoblasts that maintain bone tissue.
Osteoclasts are large cells that resorb or break down bone matrix during remodeling.
Osteoid is the unmineralized organic portion of the bone matrix secreted by osteoblasts.
Hydroxyapatite is the mineral form of calcium phosphate that provides bone its hardness.
Calcium phosphate is a mineral component of bone that combines with calcium carbonate to form hydroxyapatite.
Calcium carbonate is a mineral that contributes to bone hardness along with calcium phosphate.
Intramembranous ossification is the process where bone develops directly from mesenchymal tissue without a cartilage stage.
Endochondral ossification is the process where bone forms by replacing hyaline cartilage.
Stem cells are undifferentiated cells capable of giving rise to specialized cells like osteogenic cells.
Mesenchyme is embryonic connective tissue from which bone and other tissues develop.
Primary ossification center is the first area in a developing bone where bone tissue forms, usually in the diaphysis.
Secondary ossification centers form later in the epiphyses of long bones during development.
Hypertrophy refers to the enlargement of cells, such as chondrocytes during endochondral ossification.