ANATOMY

GENERAL ANATOMY

IMMUNE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The most common type of leukocyte, which functions to phagocytize bacteria and other substances and forms pus?
A
lymphocyte
B
macrophage
C
neutrophil
D
thrombocyte
Explanation: 

Detailed explanation-1: -The three principal classes of phagocytic leukocytes are neutrophils, eosinophils, and macrophages. Neutrophils, which comprise roughly 60% of the white blood cells present in the circulation, phagocytize bacteria and small eukaryotic microorganisms such as fungi.

Detailed explanation-2: -Neutrophils (also called polys, segs, or polymorphonuclear leukocytes) are the most common, making up about 50% to 60% of the total WBCs. Neutrophils are the first to respond to any tissue damage. Their job is to phagocytize bacteria, but they live only 4 days.

Detailed explanation-3: -Neutrophils: phagocytize bacteria by secreting an enzyme called lysozyme.

Detailed explanation-4: -The most phagocytic and abundant white blood cells in the body are neutrophils that are a type of granulocyte and monocytes that are a type of leukocyte. The most-effective large phagocytic cells of the immune system are the macrophages.

Detailed explanation-5: -In the blood, two types of white blood cells, neutrophilic leukocytes (microphages) and monocytes (macrophages), are phagocytic. Neutrophils are small, granular leukocytes that quickly appear at the site of a wound and ingest bacteria.

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