Term
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Definition
| Mature Bone Cells. They maintain and monitor the protein and mineral content of the surrounding matrix. |
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Term
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Definition
| Osteocytes occupy small chambers called LACUNAE |
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Definition
| Channels that radiate through the matrix from lacuna to lacuna and toward free surfaces and adjacent blood vessels |
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Definition
| Cells that are cuboidal in shape and found on the inner or outer surfaces of a bone... Secrete the organic components of the bone matrix |
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Definition
| Divide and differentiate to form new osteoblasts . . They produce Osteoblasts |
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Definition
| are giant multinucleated cells. They secrete acids through exocytosis of lysosomes. The acids dissolve the bony matrix and release amino acids and the stored calcium and phosphate. |
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Term
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Definition
| responsible for the forming and production of new bone. BONE FORMATION |
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Term
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Definition
| The process of erosion, increases the calcium and phosphate concentrations in body fluids. |
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Term
| Compact Bone (Dense Bone) |
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Definition
| Relatively dense, and solid. Forms the walls.. |
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Term
| Spongy Bone (Trabecular Bone) |
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Definition
| Forms an open network of struts and plates. An internal layer of spongy bone surrounds the MEDULLARY (Marrow) Cavity |
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Term
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Definition
| Contained in the Medullary Cavity; a Loose connective tissue that may be dominated by ADIPOCYTES(YELLOW MARROW) |
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Term
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Definition
| The layers of bone in compact bone |
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Definition
| The structural unit of spongy bone |
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Definition
| The structural unit of Compact Bone |
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Term
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Definition
| contains marrow cavity, which holds the red or yellow bone marrow. Red bone marrow is the source of producing RBCs, WBCs, and platelets. |
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Term
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Definition
| isolates and protects the bones from surrounding tissues, provides a route and place for attachment, participates in bone growth and repair. Attaches bone to the connective tissue of the deep fascia |
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Term
| Intramembraneous ossification |
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Definition
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Term
| Endochondreal ossification, |
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Definition
| such as long bones. This ossification begins with hyaline cartilage. |
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Term
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Definition
| is the process of depositing calcium salts into tissues. |
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Term
| Endochondral Ossification |
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Definition
| Begins with the formation of a Hyaline Cartilage Model... |
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Term
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Definition
| A thin cap of the original cartilage model remains exposed to the joint cavity also known as Articular Cartilage. |
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Definition
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Term
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Definition
| the first area of a bone to start ossifying. It usually appears during prenatal development in the central part of each developing bone. In long bones the primary centers occur in the diaphysis/shaft and in irregular bones the primary centers occur usually in the body of the bone |
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Term
| Parathyroid Hormone (PTH) |
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Definition
acts to increase the overall availability of calcium ions in the blood. Decreased levels of blood calcium stimulates the secretion of PTH.
Increased osteoclast activity is the direct result of PTH levels. |
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Term
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Definition
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| Growth hormone and thyroxine |
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Definition
| increase osteoblast activity leading to bone growth. |
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Definition
| increase bone growth dramatically during puberty. |
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Term
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Definition
| Inadequate ossification. Osteoblast activity begins to decline while osteoclast activity continues at previous levels. |
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Term
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Definition
| Characterized by reduction in bone mass and microstructural changes. |
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Term
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Definition
| Bones that are hollow or contain numerous air pockets such as ethmoid. |
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Term
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Definition
| have complex shapes with short, flat, notched, or ridged surfaces. For example the Vertebrae |
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Term
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Definition
| Includes Carpals and Tarsals; boxlike in appearance. |
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Definition
| develops between the sutures of cranium. |
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Definition
| A toughened layer of connective tissue that encircles and stabilizes a bone at a fracture site. |
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Term
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Definition
| A large blood clot that closes off the injured vessels and leaves a fibrous meshwork in the damaged area. |
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Term
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Definition
| is a crack or a break in a bone. Healing of a fracture can usually occur if portions of the blood supply, endosteum, and periosteum remain in tact .. |
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Term
| Spongy Bone is formed of .. |
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Definition
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Term
| The basic functional unit of mature compact bone is the |
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Definition
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Term
| What type of cell is capable of dividing to produce new osteoblasts? |
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Definition
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Term
| Endochondral Ossification begins with the formation of .... |
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Definition
| A Hyaline Cartilage model |
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Term
| When sexual hormone production increases, bone production. . . |
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Definition
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Term
| The presence of an epiphyseal line indicates that ... |
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Definition
| The epiphyseal growth has ended. |
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