The human heart contains chambers numbering:
A6
B4
C2
D3
Answer & Solution
Correct answer: B. 4
1. Each side has one upper chamber and one lower chamber.
2. There are two sides in all.
3. So the heart has 4 chambers.
_Source: OpenStax Anatomy and Physiology 2e, Chapter 19, The Cardiovascular System: The Heart._
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