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### 22 Cards in this Set

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 1. Describe the anatomy of the heart in terms of the chambers, the 2 nodes, and understand the functions of the heart. 4 chambers,SA and AV nodes. Regulate Temp, PH, Fluid level, Blood to lungs, organs, tissues (O2 to tissues), CO2 and waste from tissues, Deliver hormones 2. What path does blood flow take through the heart/lungs/capillaries? Blood to lungs,back to heart, out to organs, tissues, back to heart. 3. What do the following terms represent? (Define) (see next 6 cards) Define: Q Cardiac output (Q= SV X HR) Define: HR Heart rate (BPM) Define: SV Stroke Volume. Volume of blood in mL pumped out of left ventricle.SV=EDV-ESV(Approx 70mL depending on individual size) Define: EDV End Diastolic Volume Define: ESV End Systolic Volume Define: EF % Ejection Fraction % of blood pumped out of left ventricle on each beat. SB>55% 4. How do you calculate Cardiac Output? (* test question) Q = SV X HR 5. Understand and be able to apply the Karvonen Heart rate formula? (Define Karvonen formula) The Karvonen formula is maximum heart rate - resting heart rate x desired intensity + resting heart rate. [ (220-age)-RHR ] x (% both exercise intensity ranges) + (RHR to each range) 6. What happens to heart rate and stroke volume during exercise (as intensity increases)? Increase, SV levels off and can decrease slightly, HR linear increase 7. What influence does endurance training have on Q, HRmax, resting heart rate (RHR), and SV? (See next 4 cards) Endurance training on: Q Improves (increases) Endurance training on: HRmax Not much change Endurance training on: resting heart rate (RHR) Improves (Lower) Endurance training on: SV Improves 8. What effect does an elevated SV have on EDV or vice versa? Direct relationship SV^, then EDV^ 9. What is the blood pressure (BP) response during exercise? Increases (Mostly systolic) Diastolic can decrease slightly. 10. What does the A-VO2 difference represent? The difference in O2 content from arteries to veins. (How effective is O2 uptake). 11. What effect does an increase in sympathetic stimulation have on the heart? Increase (stimulate) 12. What effect would a drug classified as a “Beta-blocker” have on the heart? Relaxing or dilation effect. Beta receptor (Heart) action would be blocked. Block catacholomines..