Testbank Chapter 10. Muscle Tissue Multiple Choice

1. How much of the total body weight of the average adult is muscle tissue? a) 20-30% b) 30-40% c) 40-50% d) 50-60% e) 60-70% Ans: C Difficulty: medium Feedback: Chapter Opener Essay 2. Compare and contrast the functional and structural characteristics of muscular tissue. Ans: Both cardiac and skeletal muscle tissues are striated and smooth muscle is not, hence its name. Skeletal muscle cells have more than one nucleus, are large and run parallel to each other. Cardiac muscle cells usually have only one, sometimes two, nuclei and are branched. They also are connected to each other via gap junctions. Smooth muscle cells are small but form thick layers of hollow organs. Like cardiac muscle cells, some smooth muscle cells communicate via gap junctions. Skeletal muscle is voluntarily controlled while both cardiac and smooth muscle tissue are involuntary. Difficulty: hard Feedback: 10.1 Multiple Choice 3. The different types of muscle tissue differ from each other by: a) A