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Anatomy Quiz
Quiz
| Term | Definition |
|---|---|
| Myofibril | Fibers that make up muscle cell |
| Muscle Fiber | Term for muscle cell |
| Sarcolemma | Muscle membrane |
| Sarcoplasm | Fluid/Solution in between the fibers |
| Sarcoplasmic Reticulum | Stores calcium |
| Myosin | Thick filament |
| Tropomyosin | Goes with actin and acts as a regulator for the actin binding sites |
| Troponin | Attached to tropomyosin and binds to Ca |
| I-band | Just actin |
| A-band | Myosin and ends of actin |
| H-zone | Only myosin |
| M-line | Middle of myosin |
| Z -line | Ends of sarcomere |
| Sarcomere | Unit of muscle cell (contractile) |
| Order | Sarcomere shortens, z-lines become closer, and the myofibrils move together, the muscle fiber, contracts, and movements. |