1) Explain the organization of myofibrils, including the structure of the thick and thin filaments (proteins that compose each).

2) Describe the structure of the muscle fiber (cell) and the unique names we give to its structures.

3) Explain the process of the sliding filament model, and describe roles of the different proteins in the thin and thick filaments.

4) Identify the structure of a motor unit, the different types and how they are recruited.

5) Explain how muscle fibers contract and know the difference between twitch, treppe, wave summation, unfused and fused tetanus contractions.