How many chambers does the human heart have?
Answer and explanation
Correct answer: D. Four
- Step 1: The human heart is a muscular organ responsible for circulating oxygenated and deoxygenated blood throughout the body via double circulation.
- Step 2: It is divided into four distinct anatomical chambers: two upper receiving atria (right atrium and left atrium) and two lower pumping ventricles (right ventricle and left ventricle).
Answer
Four.
Why not the others: Fish have a two-chambered heart; amphibians and most reptiles have a three-chambered heart; and five chambers do not exist in vertebrate anatomy.
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