MICROANATOMY

Detailed explanation-1: -White blood cells are part of the body’s immune system. They help the body fight infection and other diseases.

Detailed explanation-2: -White blood cells are immune system cells. They are like warriors waiting in your blood stream to attack invaders such as bacteria and viruses. When fighting an infection, your body produces more white blood cells.

Detailed explanation-3: -Neutrophils mostly target bacterial infections. Lymphocytes mostly target viral infections.

Detailed explanation-4: -Red and white blood cells have two main functions: the carriage of oxygen; and defence against microbial attack.