Which of the following functions is associated with the spleen?
Producing coagulation factors
Destroying dying red blood cells
Producing leukocytes before birth
Storing glycogen
The Correct Answer is B
a: Producing coagulation factors - This function is associated more with the liver, which produces various clotting factors involved in the coagulation process.
b. Destroying dying red blood cells: The spleen is primarily involved in the destruction of old or damaged red blood cells. It acts as a reservoir for blood, where it filters out old or abnormal red blood cells, recycling their components and removing any potentially harmful substances.
c: Producing leukocytes before birth - Leukocytes (white blood cells) are primarily produced in the bone marrow, not the spleen.
d: Storing glycogen - Glycogen storage is mainly associated with the liver and muscles, not the spleen.
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Related Questions
Correct Answer is D
Explanation
a. Decreased blood pressure due to increased blood viscosity: Increased viscosity makes blood flow more difficult, raising blood pressure, not lowering it.
b. Increased blood pressure due to decreased blood viscosity: Decreased viscosity would make blood flow easier, potentially lowering blood pressure, not raising it.
c. Decreased blood pressure due to decreased blood viscosity: Same error in reasoning as b.
d. Increased blood pressure due to increased blood viscosity: Red blood cells are the main components of blood that affect its viscosity (thickness). An increased concentration of red blood cells (erythrocytosis) makes the blood more viscous. Thicker blood increases resistance to flow within blood vessels, making the heart work harder to pump blood, which can lead to increased blood pressure.
Correct Answer is C
Explanation
a. Kidneys: Kidney dysfunction can affect waste elimination and fluid balance but does not typically cause yellow sclera.
b. Appendix: The appendix is involved in the immune response and gut flora regulation but not in causing yellow sclera.
c. Liver: Liver dysfunction can lead to jaundice, where bilirubin accumulates in the blood and tissues, causing yellowing of the skin and sclera.
d. Spleen: The spleen is involved in blood filtration and immune response but does not directly cause yellow sclera
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