ASVAB Practice Test

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Question: 1 / 400

What job does the mitral valve in the heart perform?

Allow blood to flow from the left atrium to the left ventricle without losing any

The mitral valve is an essential component of the heart that plays a critical role in keeping blood flowing in the correct direction. It is responsible for allowing blood to flow from the left atrium to the left ventricle, preventing any leakage or regurgitation of blood back into the atrium. This function is important in maintaining the proper circulation of oxygen-rich blood throughout the body. Options B, C, and D are incorrect because they either refer to the function of other valves in the heart or a process unrelated to the heart. For example, the tricuspid valve is responsible for preventing backflow into the right atrium, and oxygen exchange occurs in the lungs, not the heart. Additionally, the heart muscle receives nutrients through the coronary arteries, not through the mitral valve.

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Prevent backflow of blood into the right atrium

Facilitate oxygen exchange in the lungs

Transport nutrients to the heart muscle

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