Question

Aorta Pressure in left heart (mm Hg) Left ventricle Left atrium Left ventricular volume (ml) Ce 1000 euro in pushing Person o n Cummings .(2 a) Indicate on the graph where ventricular systole and diastole begin and end. (2) b) Indicate EDV and ESV on figure. Stroke Volume = c) Indicate on the graph where the left AV valve shuts and the aortic semilunar valve opens. (2) d) How would this figure differ if it depicted the right atrium and ventricle? (2) e) Why can high systemic blood pressure lead to left heart failure? (2)

Answer 1

Question 8: a, b and c

din ciastoler Semitunay valve close Korta sem lumay Valve open Pressure in left heast (mm Hay AV AV valves open Jose anury Kell yentricle volume (ml) EEEEEEE SV = EDV-ESY ESV புக் diastole stastola

d. Due to functional similarities, Similar sequence of events takes place in the right heart (same as the left heart) but at much lower pressures. So, The figure for cardiac cycle for right heart will show the approximately same graph but at lower pressures.

e. Constriction of the small arteries results in high systemic blood pressure. The narrowing and blocking of the blood vessels makes the pumping of blood from heart to the body's tissues less efficient, which increases the risk of heart failure.