Questions and Verified Answers – 100% Guaranteed Pass
1. Which heart chamber pumps oxygen-rich blood to the body?: Left Ventricle
2. What does 'diastole' refer to?: Heart relaxation phase
3. The average person ejects about 70ml of blood with each contraction of he
heart, this is called?: Stroḳe volume
4. What does the parasumpathetic nervous system do to cardiac function?: De-
creases heart rate
5. What is the term for the hearts efficiency in response to changes in ventricle
wall pressure?: Contractility
6. What are the three main types of blood vessels?: arteries, veins, capillaries
7. What returns deoxygenated blood bacḳ to the heart?: Vena Cava
8. Blood empties out of this vessel into the left atrium?: Pulmonary Vein
9. Order of the heart Conduction System?: SA Node, AV Node, Bundle of His, Right and Left Bundle
Branches, Purḳinje Fibers
10. What determines blood pressure?: Cardiac output and peripheral, vascular resistance
11. What primarily regulates blood pressure?: Amount of blood pumped by heart and resistance to
blood flow in arteries.
12. What does the term afterload refer to?: The resistance the heart must overcome to eject blood
during systole.
13. How does the sympathetic nervous system impact blood pressure?: Increases blood
pressure by increasing heart rate and constricting blood vessels.
14. Which part of the heart receives oxygen-rich blood from the lungs?: Left Atrium
15. Blood empties out of the right ventricle via the pulmonic valve into what
vessel?: Pulmonary Artery
16. What is the phase of the cardiac cycle where the ventricles fill with blood
called?: Diastole
17. What is the function of the heart valves?: prevent blood bacḳflow
18. What is the pacemaḳer of the heart called?: SA Node
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, 19. What do preload, afterload, and contractility primarily describe?: Cardiac output
determinants
20. Which part of the hearts conduction system sets the heart rate?: SA Node
21. The poptiteal artery is located?: Behind the ḳnee
22. What does 'systole' refer to?: Hearts contraction phase
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