Tag: Natural killer cells

Natural killer (NK) cells, a type of white blood cell, represent up to 20% of circulating lymphocytes in humans. Understanding what a NK means is crucial for grasping the body's first line of defense against both viruses and cancer, as these specialized immune cells provide a rapid, non-specific response to threats.

Your body's immune system is a sophisticated network of cells and processes that protects you from potential invaders. The first line of defense is a set of physical and chemical barriers, but when these are breached, the second line of defense is immediately activated to respond to any threat in a non-specific manner.

Natural Killer (NK) cells represent a key part of the body's innate immune system, comprising a significant percentage of circulating lymphocytes. Acting as the first line of defense, these immune cells perform rapid surveillance and elimination of threats. Understanding what is NK in medical terms is crucial for appreciating how your body proactively fights disease.