ASVAB Practice Test

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Prepare for your ASVAB Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

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
Prevent backflow of blood into the right atrium
Facilitate oxygen exchange in the lungs
Transport nutrients to the heart muscle

The correct answer is: 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.