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What is the opening between the right auricle and the right ventricle called?

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in Biology – Class 11 by (272k points)
What is the opening between the right auricle and the right ventricle called?

(a) Aortic valve

(b) Bicuspid valve

(c) Tricuspid valve

(d) Pulmonary valve

The question was asked in an international level competition.

I'm obligated to ask this question of Human Circulatory System in chapter Body Fluids and Circulation of Biology – Class 11

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Correct option is (c) Tricuspid valve

The best I can explain: The atrio-ventricular septum separates the atria and the ventricles. However, to permit the flow of blood from the right atrium to the right ventricle, there is an opening known as the tricuspid valve.

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