Barrier Surfaces of the Innate Immune System

The video tutorial by Professor Dave explores the innate immune system's barrier surfaces, including the skin, respiratory tract, gastrointestinal tract, and female reproductive tract. It highlights common features like epithelial cells, tight junctions, and microbiomes. The tutorial also covers chemical defenses, such as antimicrobial peptides and enzymes, and the role of commensal bacteria in preventing pathogen colonization.

What new insight or understanding did you gain from this video?