What ensures that adjacent cardiac muscle cells contract

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Reference no: EM133597990

Questions

1. What ensures that adjacent cardiac muscle cells contract at the same time?

2. Explain what occurs during the P wave, PR segment, QRS complex and T wave of an EKG.

3. Give a definition of diastole and systole.

4. What is meant by cardiac output (CO) and what two main factors determine CO?15. What would the following do to CO: a) decrease parasympathetic stimulation, b) increase sympathetic stimulation, c) increase force of heart contraction, and d) decrease blood return to heart?

6. Explain the Frank-Starling Law of the heart. Make sure to discuss preload.

7. List the five blood vessels types and what they do.

8. What is the difference between systolic and diastolic blood pressure? Which is more dependent on peripheral resistance?19. What variables can increase peripheral resistance?

9. What does epinephrine (E) and norepinephrine (NE) do to smooth muscle lining blood vessels? Specifically those vessels that have alpha receptors.

Reference no: EM133597990

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