What is a anatomical barrier

Well first, your immune system has two main halves, innate and adaptive ... the innate is the line of defense to fight off disease and bacteria, which is made up of anatomical barriers

Anatomical barriers of the immune system. Your immune system is comprised of two main halves: the inate immune system and the adaptive immune system. The former is the primary line of defense in your body’s fight against pathogens, (which are invaders that enter your body) that are always trying to harm it. Hoped that was of assistance!