This is the hardest working cardiac chamber and therefore has the thickest myocardium.
A) right atrium
B) right ventricle
C) left atrium
D) left ventricle

Question

Quizplus · Accepted Answer

The left ventricle is the chamber that works the hardest;it pumps blood into the aorta.Blood pressure within the aorta is high (120/80 mmHg);the left ventricle works hard because it forces blood against this high pressure.

This Is the Hardest Working Cardiac Chamber and Therefore Has