1. How is the contraction of a skeletal muscle cell differentthan the contraction of a smooth muscle cell? How does this aid ineach muscle cell's function? 2. What is the purpose of myoglobin inslow-twitch muscle fibers? Why is there more myoglobin inslow-twitch muscle fibers than in fast-twitch fibers? 3. What isthe purpose of gap junctions in cardiac muscle cells and somesmooth muscle cells?
