Review Sheet --- Unit 4 Part 1 – Muscular System!
- How much of your body weight is made up of muscle?
- Movement occurs when muscles ______________.
- Name 3 types of muscle tissue. How do they differ from one another?
- Origin, Insertion, Body, Tendons
- What are slow twitch muscles?
- What are fast twitch muscles?
- What is a Sarcomere?
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What is the major function of skeletal muscles?
- Words to know -> Prime Mover, Synergist, Antagonist
- What are two secondary functions of skeletal muscle?
- What are nerves that stimulate muscles called?
- How does a motor unit stimulate the muscle? What are the parts of a motor unit? (Use your color sheet to answer these questions).
- What does threshold stimulus mean?
- Explain the “All or None” principle.
- Contraction terms -> Twitch, Tetanic, Isotonic, Isometric
- What two systems most affect how the muscular system works?
- What diseases can be caused by nervous system disorders?
- What diseases can be caused by skeletal system disorders?
- What is Fatigue? How is it caused?
- How is aerobic respiration better than anaerobic respiration?
- How much ATP is made from aerobic respiration? Anaerobic? Why can building lactic acid be good for the body?
- Why is oxygen debt (labored breathing) necessary?
- Exercise affects on Muscles: Terms to know -> Disuse atrophy, hypertrophy, strength training, endurance (aerobic training).
- Movement terms caused by contractions -> Flexion, extension, abduction, adduction, rotation, supination, pronation, dorsiflexion, plantar flexion