Chapter 6 – Muscles Directed Reading 1. What is a muscle fiber? 2. What is an intercalated disc? Where will you find it and why is it important? 3. Redraw and label 6-2 (pg 109). Define origin and insertion. 4. What is the difference between thick and thin myofilaments? (don’t say one’s thick and one’s thin) 5. Describe the model of how skeletal muscles contract. 6. Of figure 6-3, draw and label the relaxed, contracting and maximally contracted Sarcomeres. 7. Briefly describe the 3 functions of skeletal muscle. 8. What causes fatigue? 9. Describe the structure of a motor unit. 10. What are four types of skeletal muscle contraction? What type of motion or movement do each cause? 11. What is the difference between endurance and strength training? What types of exercise are used in both? 12. What are the 7 types of movement produced by skeletal muscles? Identify the paired movements. 13. What is the different between subcutaneous and intramuscular injections? Chapter 6 – Muscles Directed Reading 1. What is a muscle fiber? 2. What is an intercalated disc? Where will you find it and why is it important? 3. Redraw and label 6-2 (pg 109). Define origin and insertion. 4. What is the difference between thick and thin myofilaments? (don’t say one’s thick and one’s thin) 5. Describe the model of how skeletal muscles contract. 6. Of figure 6-3, draw and label the relaxed, contracting and maximally contracted Sarcomeres. 7. Briefly describe the 3 functions of skeletal muscle. 8. What causes fatigue? 9. Describe the structure of a motor unit. 10. What are four types of skeletal muscle contraction? What type of motion or movement do each cause? 11. What is the difference between endurance and strength training? What types of exercise are used in both? 12. What are the 7 types of movement produced by skeletal muscles? Identify the paired movements. 13. What is the different between subcutaneous and intramuscular injections? Chapter 6 – Muscles Directed Reading 1. What is a muscle fiber? 2. What is an intercalated disc? Where will you find it and why is it important? 3. Redraw and label 6-2 (pg 109). Define origin and insertion. 4. What is the difference between thick and thin myofilaments? (don’t say one’s thick and one’s thin) 5. Describe the model of how skeletal muscles contract. 6. Of figure 6-3, draw and label the relaxed, contracting and maximally contracted Sarcomeres. 7. Briefly describe the 3 functions of skeletal muscle. 8. What causes fatigue? 9. Describe the structure of a motor unit. 10. What are four types of skeletal muscle contraction? What type of motion or movement do each cause? 11. What is the difference between endurance and strength training? What types of exercise are used in both? 12. What are the 7 types of movement produced by skeletal muscles? Identify the paired movements. 13. What is the different between subcutaneous and intramuscular injections?