C150 Worksheet 5: Chapter 6 and 7(20 pts).

Please answer the questions below usingBlue text.

Chapter 6 Short Answer Questions:  ½ pt. each

1. What does the prefix sarco- mean?
2. What are the body locations of skeletal muscle?

3. What organ contains cardiac muscle?

4. What are the body locations of smooth muscle?

5. Single, cylindrical, multinucleated, striated cells are in which type of muscle tissue?

6. Striated, uninucleated, branched cells are typical of which type of muscle tissue?

7. Single, nonstriated, fusiform cells are typical characteristics of which type of muscle tissue?

8. Which type or type(s) of muscle tissue are involuntary?

9. The ends of the epimysium extend beyond the muscle into a strong, cordlike structure composed of mostly collagen is called:

10. List 4 functions of muscles described on page 185:

11. Describe the sarcolemma.

12. Thick filaments are made of the protein:
13. Thin filaments are made of the protein:
14. During muscle contraction, which zone disappear as actin and myosin filaments overlap?

15. Name the part of the skeletal muscle that stores and releases calcium:

16. View Figure 6.5 page 189. The neurotransmitter that diffuses across the synaptic cleft and binds to receptors in the sarcolemma is called:
17. One neuron and all of the skeletal muscle fibers it stimulates is called a:

18. Which ions enter into the muscle cell during the generation of an action potential?

19. During a skeletal muscle contraction, a cross bridge is formed when the myosin heads attach to:

20. What is the role of acetylcholinesterase?
21. What is a muscle twitch?

22. What is muscle fatigue?

23. Describe muscle tone?

24. Does aerobic exercise cause muscles to increase in size?
25. What is resistance exercise or isometric exercise?

26. Name the facial muscle that is used to whistle or blow a trumpet:

27. Which muscle of the face produces the “sad clown” face?

28. Name the muscle that inserts at the olecranon process of the ulna that functions to extend the elbow:
29. Name the muscles that cover the lower back which extends and adducts the humerus and are important in the power stroke as in swimming:

30. Large hip muscle that extends the hip and the origin is the sacrum and ilium:

Chapter 7 questions: ½ point each. Use blue text for the answers.

1. Which neuroglial cells forms the blood brain barrier?

2. Which neuroglial cells dispose of debris in the nervous system?

3. Which neuroglial cell is responsible for forming cerebral spinal fluid?

4. A myelin sheath encloses the axon of a neuron. What is the advantage of an axon being myelinated?

5. When an axon is depolarized, sodium ions cross into or out of the axon?

6. Define action potential.

7. What is a reflex?

8. List the 4 major regions of the brain:

9. The cerebrum consists of these lobes: frontal, parietal and:

10. Describe the Primary motor area of the brain: