PATHOLOGY

Detailed explanation-1: -The main parts of the immune system are: white blood cells. antibodies. complement system.

Detailed explanation-2: -So, the correct answer is ‘Humoral and cell-mediated systems’.

Detailed explanation-3: -These specialized cells and parts of the immune system offer the body protection against disease. This protection is called immunity. Humans have three types of immunity-innate, adaptive, and passive: Innate immunity: Everyone is born with innate (or natural) immunity, a type of general protection.

Detailed explanation-4: -The humoral innate immune response consists of multiple components, including the naturally occurring antibodies (NAb), pentraxins and the complement and contact cascades. As soluble, plasma components, these innate proteins provide key elements in the prevention and control of disease.