What is the first part of the immune system to attack an inade?

Answer 1

The first part of the immune system to respond to an invading pathogen is the innate immune system. This includes physical barriers like skin and mucous membranes, as well as immune cells such as macrophages and neutrophils that quickly recognize and attack pathogens. These cells utilize pattern recognition receptors to identify common features of pathogens, leading to a rapid inflammatory response. This initial defense occurs before the more specialized adaptive immune response kicks in.