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Bones & structure
| Question | Answer |
|---|---|
| Skeletal system includes | -Bones of skeleton -cartilages -ligaments -other connective tissue |
| Main organ of the system | Bones |
| What are bones composed of | Osseous tissue, dense regular connective tissue, dense irregular connective tissue and bone marrow. |
| What kind of organ are they? | Very dynamic and active |
| What are the primary functions of the skeletal system? | -support -storage -blood cell production -protection -leverage/movement |
| How many homes does a mature human have? | 206 |
| What are bones classified into their 6 categories using? | -shape -structure |
| Structural bones | "wormian bones" like the small, flat oddly shaped bones found between the flat bones of the skull. They range from the size of a grain of sand to a quarter. Their borders are like pieces of a jigsaw puzzle. -number varies among individuals |
| Irregular bones | Have complex shapes with short, flat notched, or ridged surfaces. The vertebrae that form the spinal column, the bones of the pelvis and serveral bones in the skull. |
| Short bones | Are boxlike in appearance -carpal bones (wrists) -tarsal bones (ankles) |
| Flat bones | Have this parallel surfaces. -form the roof of the skull -the sternum (breast bone) -the ribs -and the scapulae (shoulder blades) |
| What do flat bones do? | They provide protection for underlying soft tissue and offer an extensive surface area for the attachment of skeletal muscles. |
| Long bone | Long and slender -located in forearm -thigh -leg -palms -soles -fingers -toes |
| What is the largest and heaviest bone in the body? | Femur (long bone of the thigh) |
| Sesamoid bones (patallae-knee cap) | Are usually small, round and flat. -knee caps -develope within tendons near joint of knees, hands and feet. -hand and feet Not everyone has them where they can go but everyone has kneecaps. |
| Bone markings | -projections -openings and depressions |
| Bone marking (projections) | -where muscles, tendons and ligaments attach -at articulations with other bones |
| Bone markings (openings and depressions) | For passage of blood vessels and nerves |
| Ramus | Part of the bone that forms an angel with the rest of the structure |
| Sinus | Chamber within a bone, normally filled with air. |
| Process | Projection or bump (cheek bone) |
| Foramen | Rounded passageway for blood vessels or nerves |
| Fissure | Deep furrow, cleft or slit |
| Meatus | Passage or channel, especially the opening of a canal |
| Canal | Duct or channel |
Created by:
Garciamentzer
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