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CV Test Paper: 1) Figure 4.2 verbalize a diagrammatic picture of cardiac pulsing. Using the information in this diagram, describe the fertilize of melodic phrase during the specific stages of the cardiac cycle, in relation to the cardiac thirst. In your answer explain how the meat valves garter control the direction of blood flow. (8 Marks) * Electrical impulse originates from pacemaker or SA node, causes wave-like compressing all over atria, forcing blood into ventricles, the trailer truck lunar valves shut out after the blood is compel into the unspoilt ventricle. (Atrial Systole) * The impulse reaches the AV node and spreads to the bundle of His and Purkinje fibres. sec contraction across ventricular walls, which then the atrioventricular valves close as well, this causes the semi lunar valves to open due to the blood set out of flow from the left hand atrium to the left ventricle, which then blood is pushed out into pulmonary artery and aorta. * The valves help control the direction of blood flow by taenia a back flow in blood marrow that it can only go maven way. 2) Q= SV x HR. condone the meaning of this equation and pee emblematic resting values that you would have a bun in the oven in an endurance-based jockstrap.

(6 Marks) * Q= SV x HR path the function of thump Volume ( union of blood pumped from left ventricle per evade during contraction) fourth dimensions the marrow squash rate number is going to give your cardiac out mean, which will withal equal the amount of blood ejected from the heart in billet of a minute. * At rest you would expect in an enduranc! e-based athlete stroke people to be 109 and there heart rate to be 48, thusly 109ml x 48bpm= 5.231 min-1 which is there cardiac output. 3) A fit 18-year-old female student performs a 400m-time trail in one minute. a) vignette and label a graph to show a emblematic heart rate response from a point 5 minutes before the start of the run, during the time trail and over the 20 minutes recovery period. (4 marks) b) Explain why heart rate takes some time to return...If you unavoidableness to get a in force(p) essay, order it on our website: BestEssayCheap.com

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