سليك A 8. How does sympathetic nervous system activation change HR? 9. How does parasympathetic nervous system activation change HR? 10. Complete the following phases of the cardiac cycle chart: Phase AV Semilunar Pressure in valves valves ventricles A. Ventricular Filling (Mid to late diastole) B. Ventricular Closed Systole (Isovolumetric contraction) C. Ventricular systole (Ventricular ejection) D. Early Diastole (Isovolumetric relaxation) Open ventricles. Closed Closed 11. Lub sounds result from closing of the contraction of the Low Blood moving Blood enters atria and flows into ventricles Heart sounds None valves. These valves close from None valves. These valves close from Dub sounds result from closing of the of the
12. For an individual who's body requires a cardiac output of 6000 ml (61) per minute at rest, and who has a resting heart rate of 60 BPM: What is their stroke volume? 13. One day this individual noticed that her heart was beating very rapidly. She went to a clinic and a doctor found that her heart rate was 150 BPM and her cardiac output was 8000 ml/min. What was her stroke volume when she went to the clinic?. 14. What formula is represented in the following diagram? EDV ESV Normal EDV and normal contractility 15. Explain why the diagram below has a higher stoke volume? What is this an example of? Increased EDV with normal contractility 16. Explain how afterload would be different from the example above?
17. Fill in increase or decrease in the boxes below: A. A/An in ESV would cause an increase in Co. in SV would cause a decrease in CO. 8. A/An C. An increase in ventricular filling (COV) would cause a in SV.
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