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bio101 ch8 help
| Question | Answer |
|---|---|
| Joints (Articulations) | Enable body to move in response to skeletal muscle contractions |
| Fibrous joints | Held together by dense connective tissue |
| Cartilaginous joints | Held together by cartilage |
| Synovial joints | Have a complex structure |
| Synarthrotic | Immovable |
| Amphiarthrotic | Slightly movable |
| Diarthrotic | Freely movable |
| Three types of fibrous joints | Syndesmosis, suture, and gomphosis |
| Syndesmosis | Bones bound by a sheet of dense connective tissue (interosseous membrane) or a bundle of dense connective tissue (interosseous ligament) |
| Syndesmosis functional classification | Amphiarthrotic (flexible, may twist) |
| Syndesmosis example | Between tibia and fibula |
| Suture | Thin layer of connective tissue (sutural ligament) connects bones |
| Suture functional classification | Synarthrotic (immovable) |
| Suture example | Between flat bones of skull |
| Gomphosis | Cone-shaped bony process in a socket |
| Gomphosis functional classification | Synarthrotic (immovable) |
| Gomphosis example | Root of a tooth in maxilla or mandible held in place by periodontal ligament |
| Two types of cartilaginous joints | Synchondrosis and symphysis |
| Synchondrosis | Bands of hyaline cartilage unite bones |
| Symphysis | Pad of fibrocartilage between bones |