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114 bones & Ostones
HBS 1.1.4 - Bones & Osteons
| Term | Definition |
|---|---|
| osteo | bone |
| Long Bones | longer than they are wide; support weight and help with movement |
| Short Bones | small, cube-shaped bones that provide stability and movement |
| Flat Bones | thin, flat bones that protect organs and provide muscle attachment |
| Irregular Bones | bones with complex shapes that do not fit other categories |
| Diaphysis | shaft or long middle section of a long bone |
| Epiphysis | rounded ends of a long bone |
| Epiphyseal Line | remnant of the growth plate where bone lengthening occurred |
| Metaphysis | region between the diaphysis and epiphysis |
| Medullary Cavity | hollow space inside the diaphysis that contains bone marrow |
| Yellow Bone Marrow | fatty marrow that stores energy |
| Periosteum | tough outer covering of bone containing blood vessels and nerves |
| Articular Cartilage | smooth cartilage covering bone ends that reduces friction at joints |
| Spongy Bone | lightweight, porous bone found inside bones |
| Trabeculae | thin bony structures that form the framework of spongy bone |
| Red Bone Marrow | tissue that produces blood cells |
| Compact Bone | dense, strong outer layer of bone |
| Osteon | basic structural unit of compact bone |
| Haversian Canal | central canal of an osteon containing blood vessels and nerves |
| Osteocyte | mature bone cell that maintains bone tissue |
| Osteoblast | cell that builds new bone |
| Osteoclast | cell that breaks down and removes bone tissue |
| Canaliculi | tiny channels connecting osteocytes and allowing nutrients/waste to move |
| Lamellae | layers of bone tissue surrounding the Haversian canal |
| Endosteum | thin membrane lining the inside surfaces of bone |
| Lacuna | small space where an osteocyte is located |
| Blood Vessels | vessels that supply bone cells with oxygen and nutrients |
| Arterioles | small blood vessels that carry blood toward tissues |
| Venules | small blood vessels that carry blood away from tissues |