What will be the immediate effect if due to some injury, the chordae tendinae of the tricuspid valve of the human heart becomes non-functional?
Correct answer: A. The flow of blood into the pulmonary artery will be reduced.
- A. The flow of blood into the pulmonary artery will be reduced.
- B. The flow of blood into the aorta will be slowed down.
- C. The pacemaker will stop working.
- D. The blood will tend to flow back into the left atrium.
Explanation
When the chordae tendineae contract, they pull all three cusps down, allowing blood to flow into the right ventricle and opening the tricuspid valve. If the chordae tendineae are injured, a backflow of blood into the atria will occur immediately. As a result, blood flow into the pulmonary artery will be diminished since blood will continue to return to the atria.
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