1. Cardio Quiz 3

2. 1. Which node is called the “pacemaker”, and allows for atrial contraction?
2. Which node allows for ventricular contraction?
3. What does the P wave of an ECG correspond to?
4. What does the QRS wave complex correspond to?
5. The ___ ___ releases epinephrine that will rapidly increase heart rate.
6. Which circuit circulates blood throughout the lungs?
7. Which circuit circulates blood in the rest of the body?
8. Which artery supplies blood to the myocardium?
9. What is the name of the system that transports nutrients from the intestines to the liver?
10. What is blood flow in arteries dependent on?
11. What happens to bp the further it gets from the heart?
12. What 3 things influence blood flow in veins?
13. What conditions result from valves becoming damaged, allowing leakage in veins?
14. Blood is primarily composed of what substance?