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Muscle System
| Question | Answer |
|---|---|
| What are the three (3) types of muscle tissues? | skeletal, cardiac, and smooth |
| Which type(s) of muscle tissues are involuntary? | cardiac and smooth |
| Which type(s) of muscle tissues are striated? | cardiac and skeletal |
| What type(s) of muscle tissues contain disks? | cardiac |
| Which of the following is not a property of muscle tissue? Excitability Contractility Extensibility Facilitation | Facilitation |
| What are the functions of skeletal muscle? | movement, heat production, and posture |
| List the parts of the muscle from largest to smallest. | Muscle, Fascicle, Muscle Fibers, Myofibril, Filaments |
| What is the plasma membrane of muscle? | Sarcolemma |
| What is the cytoplasm of fiber? | Sarcoplasm |
| What are the tunnels throughout fiber that contains many mitochondria and several nuclei? | Sarcoplasmic Reticulum |
| What are the bundles of very fine fibers that extend through the sarcoplasm? | Myofibrils |
| What are the two types of microfilaments? | Actin and Myosin |
| The thick myofilament is called what? | Myosin |
| The thin myofilament is called what? | Actin |
| What three (3) things are needed for muscle contraction? | Neurotransmitters, Calcium, and ATP |
| When a muscle contracts with all force possible or does not contract at all, what is it called? | All-or-none Law |