THORAX ABDOMEN AND PELVIS

MEDICAL

HEART AND PERICARDIUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what are the two lower chambers called
A
atrium
B
ventricles
C
septum
D
SA node
Explanation: 

Detailed explanation-1: -The lower chambers-the right and left ventricles-pump blood out of your heart.

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