Question

how much do you know about your heart? find out by taking this quiz!
quiz: heart & circulatory system
q.1 how many chambers does the heart have?
a) six
b) five
c) four
d) three

Explanation:

The human heart has four chambers: two atria (upper chambers) and two ventricles (lower chambers). This is a fundamental anatomical fact in the study of the human body.

Answer:

C. Four