A thorough understanding of the microscopic and macroscopic structures and function of muscle is a critical foundation for students pursuing careers in the medical field. After learning the steps of excitation-contraction coupling, students will be able to understand how the nervous system activates muscle tissue, which is important to the function of many of the body's systems.

Objectives:

1. Identify the functions of skeletal muscle.
2. Describe the macroscopic, microscopic, and molecular components of skeletal muscle.
3. Describe the sequence of events involved in skeletal muscle contraction, including sliding filament theory.
4. Describe the length-tension relationship.
5. Describe motor units and motor unit recruitment and contraction types of skeletal muscle.
6. Describe the energetics of skeletal muscle contraction.
7. Compare and contrast the differences between skeletal muscle fiber types.

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