Immune cells are specialized cells within our body that play a crucial role in defending against diseases and infections. They are part of the immune system, which is responsible for protecting us from foreign substances such as bacteria, viruses, fungi, parasites, and other pathogens.
Immune cells include various types of white blood cells that work together to identify, attack, and eliminate these invaders. Some common types of immune cells are lymphocytes (B-cells and T-cells), neutrophils, macrophages, and natural killer cells. These cells can recognize specific pathogens or foreign substances through their surface markers and mount an appropriate response to eliminate them from the body.
In summary, immune cells are essential components of our immune system that help protect us against diseases and infections by identifying, attacking, and eliminating foreign substances.