Which chamber experiences a maximum pressure of around 118 mm Hg during contraction?
A)right ventricle
B)left ventricle
C)left atrium
D)right atrium

Question

Quizplus · Accepted Answer

The left ventricle experiences a maximum pressure of around 118 mm Hg during contraction because it is responsible for pumping oxygenated blood from the lungs out to the rest of the body, which requires a high amount of pressure to overcome the resistance of the systemic circulation. The right ventricle, on the other hand, only needs to pump deoxygenated blood to the lungs, which have lower resistance and therefore require less pressure. The atria (both left and right) receive blood from the veins and do not experience as high of pressures during contraction.

Which Chamber Experiences a Maximum Pressure of Around 118 Mm