Question 15
EasyOriginal questionHow many chambers does the human heart have?
Show the answer and explanation
CorrectNot quiteAnswer C
Correct answer: C
Explanation
Two upper chambers (atria) receive blood and two lower chambers (ventricles) pump it out.
Worth noting
Fish have two chambers and frogs three; birds and mammals have four.
- Concept
- Chambers of the heart
- Typical timeTypical
- 35 s
- Your timeYours
- —
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