Science Test Chapter 15 Aim 26
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21 terms
Terms | Definitions |
|---|---|
 characteristics of bones | hard, rigid tissue, contain nerves, composed of living cells |
| function of bones | protect vital organs, allow us to move, produces blood cells, store minerals |
| epiphysis | ends of the bone, composed of spongy bone |
| diaphysis | the shaft of the bone |
| periosteum | thin membranous covering, rich in blood vessels |
| compact bone | under the periosteum, dense and hard, not solid (contains spaces called canals |
| spongy bone | beneath compact bone, found at ends of bones, contains air spaces |
| marrow | soft tissue foudn in the bone |
| red marrow | produce blood cells |
| yellow marrow | stores fat, energy reserve |
| long bones | found in femur, fingers, humerus. function is to support and absorb shock |
| short bones | found in wrist, ankle, knee. function is to aid in movement |
| flat bones | found in sternum, ribs, skull. function is to protect organs |
| irregular bones | found in face, vertebrae. function is to support and protect |
| joints | when 2 or more bones come together for movement |
| ball and socket joint | circular motion. shoulder, hip |
| pivot joint | 1 bone rotates over another. vertebral column |
| gliding joint | 1 bone moves over another. wrist, ankles |
| hinge joint | back and forth motion. elbow, knee |
| immovable joint | little or no movement. skull, ribs |
| cartilage | flexible outer covering found in joints. ear, nose |
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