The mitral valve prevents backflow of blood from the ________ into the ________.
A. left ventricle; left atrium
B. right ventricle; right atrium
C. left atrium; left ventricle
D. right atrium; right ventricle
Answer: A
Anatomy & Physiology
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Which blood type carries anti-A antibodies in the plasma?
A) A+ B) A? C) B? D) AB+
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Which of the following is NOT true of the thymus gland?
A. It is located in the neck. B. It is an endocrine gland. C. It produces thymosin. D. It is important in the body's immune system.
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Tonsils have blind-ended structures called ________.
Fill in the blank(s) with the appropriate word(s).
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