This large lymphatic organ removes worn-out blood cells from circulation and also serves as a reservoir for blood:
Thymus gland
Liver
Spleen
Interstitial spaces
The Correct Answer is C
A. The thymus gland is involved in the maturation of T-cells, a type of white blood cell, but it does not remove worn-out blood cells or serve as a blood reservoir.
B. The liver has various functions, including detoxification, protein synthesis, and storage of glycogen, but it is not the primary organ for removing worn-out blood cells or serving as a blood reservoir.
C. The spleen is a large lymphatic organ that filters blood, removes worn-out blood cells, and serves as a reservoir for blood. It also plays a role in immune function by filtering pathogens from the blood.
D. Interstitial spaces refer to the fluid-filled spaces between cells in tissues and are not an organ involved in blood cell removal or storage.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Macrophages are present in mucosal lymphoid tissue and play a role in immune surveillance, phagocytosis, and antigen presentation.
B. Red blood cells are not associated with mucosal lymphoid tissue. They are primarily involved in oxygen transport and do not play a direct role in the immune functions of mucosal lymphoid tissue.
C. Monocytes are a type of white blood cell that can differentiate into macrophages in tissues, including mucosal lymphoid tissue.
D. Dust cells are a type of macrophage found in the lungs, often associated with inhaled particles, and can also be present in mucosal lymphoid tissue.
Correct Answer is B
Explanation
A. Blood contains various types of cells, such as red blood cells and white blood cells, but dust cells are not found in the blood.
B. Dust cells are a type of macrophage found in the lungs. They are responsible for engulfing and clearing inhaled particles, dust, and pathogens from the respiratory system.
C. The liver contains Kupffer cells, which are macrophages that filter blood, but dust cells are not found in the liver.
D. The small intestine contains various immune cells, but dust cells are not among them. The small intestine has its own specialized immune cells like Peyer's patches.
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