The Immune System: Innate Defenses and Adaptive Defenses

The video tutorial provides an in-depth look at the human immune system, explaining its two main components: the innate and adaptive defense systems. The innate system includes barriers like skin and mucous membranes, while the adaptive system involves antibodies and lymphocytes. The inflammatory response is highlighted as a key innate defense mechanism. The tutorial also covers the roles of phagocytes, natural killer cells, and the processes of humoral and cellular immunity, emphasizing the body's ability to recognize and remember pathogens.

What are antigens and how do they trigger an immune response?

What is the significance of memory cells in the adaptive immune response?

How do vaccines contribute to the immune system's ability to respond to pathogens?

How do T cells differ from B cells in their function?