What are the three main organs of the nervous system?

The central nervous system is made up of the brain and spinal cord and sensory organs.

Explanation:

the three main organs of the nervous system are

brain

spinal cord

nerves

Explanation:

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white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.