| A | B |
|---|
| Compact bone | Bone tissue that is densely packed;cortical bone. |
| Diaphysis | The shaft of a long bone. |
| Endochondral bone | Bone that begins as hyaline cartilage that is subsequently replaced by bone tissue. |
| Epiphyseal disk | A cartilaginous layer within the epiphysis of a long bone that functions as a growing region. |
| Epiphysis | The end of a long bone. |
| Hematopoiesis | The production of blood and blood cells. |
| Intramembranous bone | Bone that develops from layers of membranous connective tissue. |
| Lever | A simple mechanical device consisting of a rod, fulcrum, weight, and a source of energy. |
| Marrow | Connective tissue that occupies spaces within the bones. |
| Medullary cavity | A cavity within the diaphysis of a long bone occupied by marrow. |
| Osteoblast | A bone forming cell. |
| Osteoclast | A cell that causes the erosion of bone. |
| Osteocyte | A bone cell. |
| Periosteum | The covering of fibrous connective tissue on the surface of a bone. |
| Spongy bone | Bone that consists of bars and plates separated by irregular spaces; cancellous bone. |
| Articular cartilage | Hyaline cartilage that covers the ends of bones in synovial joints. |
| Red marrow | Blood-cell-forming tissue located in spaces within bones. |
| Yellow marrow | Fat-storage tissue found in the cavities within bones. |
| Synovial membrane | The membrane that forms the inner lining of the capsule of a freely movable joint. |
| Synovial joint | A freely movable joint. |
| Synovial fluid | The fluid secreted by the synovial membrane. |
| Endosteum | Thin layer of cells that line the medullary cavity of a bone. |
| Synarthrosis | A joint in which the bones are fastened tightly together by a thin layer of fibrous connective tissue; an immovable joint. |
| Fontanel | A membranous region located between certain cranial bones in the skull of a fetus. |
| Axial skeleton | The portion of the skeleton that supports and protects the organs of the head, neck, and trunk. |
| Endosteum | Thin layer of cells that lines the medullary cavity of a bone. |
| Diarthrosis | A freely movable joint. |
| Amphiarthrosis | A joint in which bones are connected by fibrocartilage or ligaments; a slightly movable joint. |
| Ligament | Connective tissue that connects two or more bones at a joint. |
| Meniscus | Pieces of fibrocartilage that separate the articulating surfaces of bones in the knee. |
| Tendon | White fibrous connective tissue that connects a muscle to a bone. |
| Joint | Functional junction between bones. |
| Appendicular skeleton | Consists of the bones of the limbs and the bones that anchor the limbs to the axial skeleton. |
| Sutures | Interlocking line between bones; an immovable joint |
| Condyle | A rounded process of a bone, usually at the articular end. |
| Crest | A ridgelike projection of a bone. |
| Foramen | An opening through a bone, which usually serves as a passageway for blood vessels, nerves, or ligaments. |
| Fossa | A relatively deep depression in a bone. |
| Meatus | A tubelike passageway within a bone. |
| Process | A prominent projection on a bone. |
| Sinus | A cavity or hollow space in a bone or other body part. |
| Suture | An immovable joint, such as that between adjacent flat bones of the skull. |
| Trochanter | A broad process on a bone. |
| Tubercule | A small, rounded process on a bone. |
| Fontanel | A membranous region located between certain cranial bones in the skull of a fetus. |
| Growth hormone | A hormone released by the anterior lobe of the pituitary gland that promotes growth. |
| Ossification | The formation of bone tissue. |
| Bursae | Closed, fluid-filled sacs found in joints. |
