Biology · Body Fluids and Circulation
Which one of the following statements is INCORRECT regarding the human circulatory system?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The upper two chambers of the heart are called ventricles and the lower two chambers are called atria✓
- 2The rhythmic contraction and relaxation of muscles in the heart chambers constitute the heartbeat
- 3The pulmonary artery carries carbon dioxide-rich blood to the lungs
- 4The human heart is a four-chambered muscular organ
Correct answer
The upper two chambers of the heart are called ventricles and the lower two chambers are called atria
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