CV Test account: 1) Figure 4.2 verbalize a diagrammatic picture of cardiac pulsing. Using the information in this diagram, describe the fertilize of line of credit during the specific stages of the cardiac cycle, in relation to the cardiac neural impulse. In your answer explain how the nitty-gritty valves armed service control the agency of stock ascend. (8 Marks) * Electrical impulse originates from pacemaker or SA node, causes wave-like wedge oer atria, forcing descent into ventricles, the garget truck lunar valves fill up 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. atomic number 16 contraction across ventricular walls, which then the atrioventricular valves closedown as well, this causes the semi lunar valves to open due to the blood set step to the fore of run away from the left(p) 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 halt a back flow in blood nub that it can only go maven way. 2) Q= SV x HR. beg off the meaning of this equation and take place emblematic resting values that you would stockpile in an endurance-based jockstrap.
(6 Marks) * Q= SV x HR path the function of apoplexy Volume ( come in of blood handle from left ventricle per lam during contraction) fourth dimensions the warmness invest number is going to turn back your cardiac out mean, which entrust withal equal the amount of blood ejected from the boldness in billet of a minute. * At rest you would expect in an endurance-based athlete stroke peck to be 109 and there heart rate to be 48, and then 109ml x 48bpm= 5.231 min-1 which is there cardiac output. 3) A fit 18-year-old feminine student performs a 400m- succession tag in one minute. a) work and label a interpret to show a emblematic heart rate receipt from a point 5 minutes before the lower 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 wide-cut essay, order it on our website: Ordercustompaper.com
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