MICROANATOMY

Detailed explanation-1: -They protect you against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are always at war. They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health.

Detailed explanation-2: -White blood cells are part of the body’s immune system. They help the body fight infection and other diseases. Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).

Detailed explanation-3: -One of the key functions of blood is protection. 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-4: -So, the correct option is ‘To defend the body against infections’

Detailed explanation-5: -WBC – White blood cells are also called leukocytes or leucocytes. They are cells of the immune system, which is mainly responsible for: Protecting and fighting against invading pathogens.