Which of the following is not a function of the spleen?
Chyle drainage
Blood filtration
Destruction of old red blood cells
Blood storage
The Correct Answer is A
A. Chyle drainage is not a function of the spleen. Chyle, a milky fluid rich in fats absorbed from the intestines, is transported by the lymphatic system — specifically through structures like lacteals and the thoracic duct — not the spleen.
B. Blood filtration is a key function of the spleen, as it removes pathogens and debris from the blood.
C. Destruction of old red blood cells occurs in the spleen, which acts as a graveyard for aging or damaged red blood cells.
D. Blood storage is also a spleen function; it can store blood and release it in case of hemorrhage or increased demand.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The appendix is an organ that contains lymphoid tissue and plays a role in immune function, but it does not specifically refer to macrophages and monocytes.
B. The reticuloendothelial system (also known as the mononuclear phagocyte system) consists of macrophages and monocytes found throughout the body. These cells are part of the immune system and are responsible for phagocytosis, or the engulfing and digesting of pathogens, dead cells, and debris.
C. Peyer's patches are clusters of lymphoid tissue found in the small intestine that monitor and respond to pathogens in the digestive tract.
D. Tonsils are lymphoid tissues located in the throat, playing a role in immune defense, but they are not part of the reticuloendothelial system.
Correct Answer is B
Explanation
A. Interleukin is a type of cytokine that plays a role in the immune system, but it is not another name for immunoglobulin.
B. Antibodies are also known as immunoglobulins. They are proteins produced by B cells that recognize and bind to specific antigens to help neutralize or destroy pathogens.
C. Interferon is another type of protein that plays a role in the immune response, particularly in inhibiting viral replication, but it is not the same as immunoglobulin.
D. Antigen is a foreign substance that induces an immune response, but it is not synonymous with immunoglobulin.
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