What is RBC And WBC

RBC (Red Blood Corpuscles) :

The red blood corpuscles or the RBC are radial disc shaped cells, these cells generally have any nucleus and are meant to simply carry oxygen to the different parts of the body. These cells are red in color and contain a substance called hemoglobin. The existence of this hemoglobin is also the reason for the red color of the RBCs.
The RBCs are produced in a region called as the bone marrow. The bone marrow is a spongy substance that is found in the hollow parts of the large bones of the body. The bone marrow produces RBCs round the clock.

WBC (White Blood Corpuscles) :

The white blood corpuscles or the WBCs are amoeboid structures that are present in the blood to fight infections within the body. These cells attack any foreign component that might enter the blood either while having a transfusion or minor cuts, resulting in some amount of blood loss. These cells are produced in the lymph nodes of the body. These cells that represent the immune power of the system are mainly responsible for generating antibodies in the human body against infections / foreign particles.