From deoxygenated blood entering the heart to oxygenated blood leaving the heart, in which order will the blood pass through the following valves?
Pulmonary valve
Aortic valve
Tricuspid valve
Bicuspid valve
The Correct Answer is C, A, D, B
- Deoxygenated blood from the body enters the right atrium, passes through the tricuspid valve into the right ventricle.
- From the right ventricle, blood moves through the pulmonary valve into the pulmonary arteries and goes to the lungs for oxygenation.
- Oxygenated blood returns to the left atrium and passes through the bicuspid (mitral) valve into the left ventricle.
- Finally, the left ventricle pumps oxygenated blood through the aortic valve into the aorta for distribution to the body.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Bone marrow: The bone marrow is primarily responsible for the production of blood cells, including red blood cells, rather than their removal.
B. Tonsils: The tonsils are part of the immune system and help filter pathogens but are not primarily involved in removing old red blood cells.
C. Thymus: The thymus is involved in the maturation of T-lymphocytes (T-cells) and does not have a role in filtering blood or removing red blood cells.
D. Spleen: The spleen filters the blood, removes old and damaged red blood cells, and helps in the immune response by filtering pathogens.
Correct Answer is A
Explanation
A. Cecum: The cecum is the first part of the large intestine, where fluids and salts are absorbed after digestion in the small intestine.
B. Ascending colon: The ascending colon continues the process of absorbing water and salts but starts after the cecum.
C. Rectum: The rectum stores feces and plays little role in fluid and salt absorption.
D. Descending colon: While the descending colon absorbs water, much of the absorption occurs earlier in the large intestine, primarily in the cecum.
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