Multiple choice

Two lower chambers are left ventricle and _______.

  1. left atrium

  2. right atrium

  3. right ventricle

  4. aorta

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The heart has four chambers: two upper chambers (atria) and two lower chambers (ventricles). The question specifically asks for the TWO LOWER CHAMBERS, which are the left ventricle and right ventricle. The atria receive blood; the ventricles pump blood out.