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- What effect does a pacemaker potential have on a smooth musclecell?Ans Column I Column II Ca binds to calmodulin 1. Elastic fibers that anchor thick filaments in place Ca binds to troponin 2. Occurs in smooth muscles only Oxidative type I muscle fibers 3. Is the primary source of Ca that drives muscle contraction Titin 4. Is a dense connective tissue that surrounds the entire muscle H zone 5. Anchors thin filaments together Z line 6. Have high concentration of mitochondria Sarcomere 7. The region of thick filaments that has no overlap with thin filaments Actin and myosin 8. Is the functional unit of skeletal muscle Epimysium 9. Occurs in skeletal and cardiac muscles Sarcoplasmic reticulum 10. Generate the mechanical force of a muscle through crossbridge cycling Matching between Column I and corresponding definition or function in column II ?The endplate potential decreases with distance because too spread Na* channels the muscle membrane is too thin the leakiness of the muscle fiber the accumulation of voltage-gated channels none of the above
- Ans Column I Column II Ca binds to calmodulin 1. Elastic fibers that anchor thick filanments in place Ca binds to troponin 2. Occurs in smooth muscles only Oxidative type I muscle fibers 3. Is the primary source of Ca that drives muscle contraction Titin 4. Is a dense connective tissue that surrounds the entire muscle H zone 5. Anchors thin filaments together Z line 6. Have high concentration of mitochondria Sarcomere 7. The region of thick filaments that has no overlap with thin filaments Actin and myosin 8. Is the functional unit of skeletal muscle Epimysium 9. Occurs in skeletal and cardiac muscles Sarcoplasmic reticulum 10. Generate the mechanical force of a muscle through crossbridge cyclingThe EMG is a recording of: * The action potentials of the motor nerves supplying the muscle fibers. The action potentials of the innervated muscle fibers. The contractions of the innervated muscle fibers O The action potential of the pacemaker cells O The electrical activity in the sarcoplasmic reticulumWhat is the effect of centrally acting skeletal muscle relaxants on the body, and what safety precautions are related to their use?