Which cell type differentiates into macrophages once it leaves the blood and migrates to the tissues?
Dendritic cells
Bacterial cells
Natural killer cells.
Monocyte cells
The Correct Answer is D
A. Dendritic cells: Dendritic cells are antigen-presenting cells that originate from precursor cells in the bone marrow, but they do not differentiate from monocytes.
B. Bacterial cells: Bacterial cells are pathogens and do not differentiate into any immune cells.
C. Natural killer cells: Natural killer cells are a type of lymphocyte involved in the innate immune response but do not differentiate from monocytes.
D. Monocyte cells: Monocytes are a type of white blood cell that, upon migrating into tissues, differentiate into macrophages, which play a key role in phagocytosis and immune response.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. This allows for rapid exchange of oxygen and nutrients: Capillaries have thin walls (one cell thick) to facilitate the rapid diffusion of gases (oxygen and carbon dioxide), nutrients, and waste products between blood and tissues.
B. This allows for red blood cell formation to occur: Red blood cells are formed in the bone marrow, not in capillaries.
C. There is no blood pressure within the capillaries: There is still blood pressure within capillaries, although it is lower than in arteries, so this is incorrect.
D. Blood does not travel through capillaries: Blood does indeed travel through capillaries as part of the circulatory system.
Correct Answer is D
Explanation
A. Liver: The liver plays a role in detoxification and metabolism but is not involved in lymphocyte production.
B. Stomach: The stomach is part of the digestive system, not the immune system.
C. Small Intestine: The small intestine is involved in nutrient absorption and contains some lymphoid tissue (Peyer's patches) but is not the main site of lymphocyte production.
D. Thymus: The thymus is the organ where T-lymphocytes mature and are essential for the immune response.
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