ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are a type of white blood cell
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They are a type of plasma
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They eat and digest foreign cells
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They carry oxygen away from the body
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They are a type of red blood cell
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Detailed explanation-1: -phagocyte, type of cell that has the ability to ingest, and sometimes digest, foreign particles, such as bacteria, carbon, dust, or dye. It engulfs foreign bodies by extending its cytoplasm into pseudopods (cytoplasmic extensions like feet), surrounding the foreign particle and forming a vacuole.
Detailed explanation-2: -In an organism’s immune system, phagocytosis is a major mechanism used to remove pathogens and cell debris. For example, a macrophage ingests a pathogenic microorganisms by phagocytosis and destroys it.
Detailed explanation-3: -Phagocytosis is a critical part of the immune system. Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against.
Detailed explanation-4: -Macrophages, neutrophils, monocytes, dendritic cells, and osteoclasts are among these dedicated cells. Professional phagocytes are responsible of removing microorganisms and of presenting antigens to lymphocytes in order to activate an adaptive immune response.