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Biology 2121 – Lecture Sheet – Comparison of Smooth vs Skeletal Muscle Fibers 1. Complete the table below concerning the differences between the cell shape, appearance and body location. Skeletal Muscle Tissue Smooth Muscle Tissue 2. In the hollow ventral cavity organs of the body, smooth muscle is found in ___________ layers, a ________________ layer and a _________________ layer. The organ that has 3 layers of smooth muscle is the _________________. 3. Complete the table below concerning the differences between smooth and skeletal muscle tissue. Criteria Skeletal Muscle Smooth Muscle 1. CT 2. Myofilaments 3. T-Tubules 4. SR 4. Describe the role of Caveolae. Describe the roles of the dense bodies and intermediate filaments. 5. Complete the table below: Criteria Skeletal Muscle 5. Gap Junctions 6. Regulation of Contraction 7. Ca Source 6. What are the functions of the varicosities? 7. Smooth muscles contract very _______________ and ______________ compared to skeletal muscle. 8. Smooth muscle mainly function in _______________ respiration conditions. 9. On the back of the paper, describe the role of calmodulin in smooth muscle contractions. Smooth Muscle