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| Question | Answer |
| 3 Types of muscle | Skeletal- S + V Cardiac- S+ IV Smooth- NS-IV |
| Muscles are... Extensible, Elastic and Contractable | Extensible- Stretch and extend Elastic- resume resting length after extending Contractable- Ability to shorten =movement |
| Muscle Structure | . |
| Epimysium | Dense irregular tissue surrounding entire muscle |
| Endomysium | Wispy sheath of connective tissue surrounding individual fibres |
| Perimysium | Connective tissue Surrounding fasicles |
| Fascicles | BUNDLES long cylindrical fibres |
| Muscle Fibres | . |
| Myofobrils | Contractile proteins (give striated appearance) |
| Sarcomere | Contractile proteins (Smallest unit) Contains actin and myosin |
| Cytoplasm (Sarcoplasm) | Contains glycogen and myoglobin jelly surrounding fibres |
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