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BIO252 FINAL EXAM STUDY GUIDE COMPLETE SOLUTION
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BIO252 FINAL EXAM STUDY GUIDE COMPLETE SOLUTION BIO252 FINAL EXAM STUDY GUIDE COMPLETE SOLUTION BIO252 FINAL EXAM STUDY GUIDE COMPLETE SOLUTION
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1 BIOS 252 Final Exam Study Guide Chapter 10: Muscle Tissue Characteristic Skeletal Muscle Cardiac Muscle Smooth Muscle Location Attached to bones Heart Lines organs, airways, and blood vessels Presence of Sarcomeres/Striations Yes Yes No Nervous Control Voluntary Involuntary Involuntary Presence of Intercalated Discs No Yes No Speed of Contraction Fast Moderate Slow • Muscle Components (Tube inside a tube) 2 • Muscle fiber - Functional Unit of Skeletal Muscle 3 • Myosin head movement o ATP must be present for myosin head to bind to actin filament. o ATP hydrolyzes to form ADP and Phosphate to hold myosin to actin. o Phosphate releases and in turn releases energy to force the myosin to 4 pull the actin closer. o Depleted ADP is replaced with fresh ATP • Steps of Contractions • Types of Muscle Metabolism o Creatine phosphate - Lasts 15 seconds o Anaerobic glycolysis - Lasts a couple minutes o Aerobic Cellular Respiration - Lasts several minutes to hours • Types of Contractions o Isotonic Contraction - muscles contract and movement occur. o Isometric Contraction - muscles contract, but no net movement occurs. • Skeletal Muscle Fiber Types o Slow Oxidative FibersThe benefits of buying summaries with Stuvia:
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