Which of the following heart valves separates the right atrium from the right ventricle?
Pulmonic
Tricuspid
Aortic
Mitral
The Correct Answer is B
A. The pulmonic valve separates the right ventricle from the pulmonary artery, controlling blood flow to the lungs, not the right atrium from the right ventricle.
B. The tricuspid valve separates the right atrium from the right ventricle, allowing blood to flow from the atrium into the ventricle before it is pumped to the lungs.
C. The aortic valve separates the left ventricle from the aorta, controlling blood flow from the heart to the body, not between the atrium and ventricle.
D. The mitral valve separates the left atrium from the left ventricle, controlling blood flow in the left side of the heart.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Hydrochloric acid is a strong acid produced in the stomach to aid in digestion, not a byproduct of glucose breakdown.
B. Ketotic acid is produced in conditions where fat metabolism predominates, especially during ketosis, not during anaerobic glucose breakdown.
C. Carbonic acid forms when carbon dioxide dissolves in water and is not related to glucose metabolism.
D. Lactic acid is produced during anaerobic respiration when glucose is broken down without sufficient oxygen. This occurs in muscles during intense exercise, leading to the accumulation of lactic acid, which causes the sensation of muscle fatigue. This is the correct answer.
Correct Answer is D
Explanation
A. The superior and inferior vena cava carry deoxygenated blood from the body to the right atrium, not oxygenated blood to the left atrium.
B. The aorta carries oxygenated blood away from the left ventricle to the rest of the body but does not return it to the heart.
C. The pulmonary arteries transport deoxygenated blood from the right ventricle to the lungs for oxygenation, not the other way around.
D. The pulmonary veins are responsible for transporting oxygenated blood from the lungs to the left atrium, completing the pulmonary circulation.
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