Match the letters on the graphs with the descriptions below. Use the letters on

Question

Match the letters on the graphs with the descriptions below. Use the letters on the EKG for electrical descriptions and the letters on the ventricular volume graph for all other descriptions. Use multiple letters if it is appropriate. ___ all valves are closed ___b___ atrial depolarization ___b___ AV valves are open ___h___ ventricular systole begins ___c___ ventricular repolarization ___b___ atrial contraction occurs here ___h___ left ventricular pressure is greater than atrial pressure but less than aortic pressure ___h|___ region where end systolic volume is described ___h___ region where semilunar values are open ___ region where greatest pressure is reached in the left ventricle ___ if the heart rate slowed, the value in this region would increase before ventricular contraction ___b___ region where atrial pressure is greater than ventricular pressure

Explanation / Answer

f    all valves are closed

d greatest pressure is reached in the ventricle

o if the heart rate is slowed, the value in this region would increase before ventricular contraction

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