1. How is the contraction of a skeletal muscle celldifferent than the contraction of a smooth muscle cell? How doesthis aid in each muscle cell's function? 2. What is the purpose ofmyoglobin in slow-twitch muscle fibers? Why is there more myoglobinin slow-twitch muscle fibers than in fast-twitch fibers? 3. What isthe purpose of gap junctions in cardiac muscle cells and somesmooth muscle cells?
