MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

BLOOD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
B cells, T cells, and natural killer cells are ____
A
monocytes
B
basophils
C
eosinophils
D
lymphocytes
Explanation: 

Detailed explanation-1: -Lymphocytes are a type of white blood cells present in the blood and lymph of our body. The main function of lymphocytes is to produce antibodies and protect against viruses, bacteria and toxins. These lymphocytes can be classified into B lymphocytes, T lymphocytes and natural killer cells.

Detailed explanation-2: -Natural Killer (NK) Cells are lymphocytes in the same family as T and B cells, coming from a common progenitor. However, as cells of the innate immune system, NK cells are classified as group I Innate Lymphocytes (ILCs) and respond quickly to a wide variety of pathological challenges.

Detailed explanation-3: -Definition. A lymphocyte is a type of white blood cell that is part of the immune system. There are two main types of lymphocytes: B cells and T cells.

Detailed explanation-4: -Natural Killer cells represent the third lymphocyte population (Following T and B cells), and they play essential roles in the frontline’s defense of the innate immune system. The term natural killer suggests that these cells can kill the target cells without pre-stimulation.

Detailed explanation-5: -T cells can wipe out infected or cancerous cells. They also direct the immune response by helping B lymphocytes to eliminate invading pathogens. B cells create antibodies. B lymphocytes, also called B cells, create a type of protein called an antibody.

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