Question

Which of these are called ‘Soldiers of the body’?
(a)RBC
(b)WBC
(c)Platelets
(d)None of these

Answer 1

It's the cells of the framework that are associated with securing the body against both transmittable illness and unfamiliar invaders. It is produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells.

Complete answer
White blood cells are cells of the system, which play a neighborhood in protecting the body against infectious diseases and foreign bodies. These cells flow with the blood throughout the body then scavenge and kill the parasites and foreign bodies. Hence, they are called soldiers of the body.
Generally, there are three main types of white blood cells:
-Granulocytes
-Monocytes
-Lymphocytes
Granulocytes are like phagocytes, that is they can ingest foreign cells such as bacteria, viruses, and other parasites.
Monocytes are worked as the garbage trucks of the immune system. Approximately 5% to 12% of white blood cells in our bloodstream are monocytes, but their main function is to move from one place to another into tissues and clean up dead cells.
Lymphocytes play a significant role in the immune system, with T cells being responsible for directly killing many foreign invaders.

Additional information
All white blood cells have nuclei, which distinguishes them from the opposite blood cells, the anucleated red blood cells (RBCs) and platelets. The distinctive white blood corpuscle types are characterized in standard manners; two sets of broadest classifications group them either by structure (granulocytes or agranulocytes) or by cell ancestry (myeloid cells or lymphoid cells). These broadest classes are regularly additionally isolated into five principal types: neutrophils, eosinophils (acidophiles), basophils, lymphocytes, and monocytes. Monocytes and neutrophils are phagocytic.

So the correct answer is ‘WBC’.

Note: When the leukocytes increase in blood then it is the indicator of diseases, and thus the white blood cell count is an important subset of the complete blood count.
An increase within the number of leukocytes over the upper limits is called leukocytosis. It is normal when it's a part of healthy immune responses, which happen frequently. It is occasionally abnormal when it's neoplastic or autoimmune in origin. A decrease below the lower limit is named leukopenia. This indicates a weakened immune system.