Explain the following events in the cardiac cycle: changes in ventricular, aortic, and atrial pressure; changes in ventricular volume and heart sounds.

You do not need to site any sources. I just need these answered please.

Chapt. 17: The heart
1. Identify the major structures of the heart, and describe the path of blood flow through the heart and vasculature. Identify and explain the importance of valves
2. Identify the major components of the cardiovascular system, and briefly describe their function
3. Explain the following events in the cardiac cycle: changes in ventricular, aortic, and atrial pressure; changes in ventricular volume and heart sounds.
4. Trace the path of action potentials through the conduction system of the heart, and relate the hearts electrical activity to its pumping action.
5. Describe how the phases of the electrocardiogram relate to the events of the cardiac cycle.
6. Explain the difference between extrinsic control and intrinsic control, and explain how these terms relate to the regulation of the heart.
7. Define CO and explain how each of the following variables affects cardiac output: sympathetic and parasympathetic nervous activity, circulating epinephrine, afterload, preload, end-diastolic volume, ventricular contractility, and filling time.
8. Calculate stroke volume, ejection fraction and cardiac output
9. Describe the neural pathways controlling cardiovascular function

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