1. Many Athletes injure their knee joints. Suggest a reason for the fact that knee injuries are quite common. 2. How is skeletal muscle tissue, and cardiac muscle tissue similar? How are they...

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Extracted text: 1. Many Athletes injure their knee joints. Suggest a reason for the fact that knee injuries are quite common. 2. How is skeletal muscle tissue, and cardiac muscle tissue similar? How are they different? 3. How is smooth muscle tissue different from the other two types of muscle tissue? 4. What would you expect to happen to the striated bands in a skeletal muscle cell when the muscle contracts?