ANATOMY

Detailed explanation-1: -The immune system is made up of different organs, cells, and proteins that work together. There are 2 main parts of the immune system: The innate immune system.

Detailed explanation-2: -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-3: -So, the correct answer is ‘Humoral and cell-mediated systems’.

Detailed explanation-4: -Organs and tissues important to the proper functioning of the immune system include the thymus and bone marrow, lymph nodes and vessels, spleen, and skin.

Detailed explanation-5: -Your immune system is a large network of organs, white blood cells, proteins (antibodies) and chemicals. This system works together to protect you from foreign invaders (bacteria, viruses, parasites, and fungi) that cause infection, illness and disease.