Question

What prevents blood from going in the wrong direction??

Answer 1

valves present in the heart and the veins prevent the blood going in wrong direction

Answer 2

The tricuspid and mitral valves lie between the atria and ventricles. The aortic and pulmonic valves lie between the ventricles and the major blood vessels leaving the heart. The heart valves work the same way as one-way valves in the plumbing of your home. They prevent blood from flowing in the wrong direction.

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