Physiology of Mechanism of Natural Killer (NK) Cells

The video explains the role of natural killer (NK) cells in the innate immune system. NK cells are a type of lymphocyte that perform immunological surveillance, identifying and destroying cells with foreign or abnormal antigens. They use perforins to create holes in cell membranes and granzymes to induce apoptosis, effectively eliminating infected, cancerous, or foreign cells. The video also introduces the concept of antigens as 'name tags' that help NK cells distinguish between self and non-self cells.

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