MICROANATOMY

Detailed explanation-1: -Innate, or nonspecific, immunity is the defense system with which you were born. It protects you against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body. These barriers form the first line of defense in the immune response.

Detailed explanation-2: -Innate immunity is the host’s first line of defense and is intended to prevent infection and attack the invading pathogens. This nonspecific mechanism is fast (minutes to hours) while the adaptive response takes longer (days to weeks).

Detailed explanation-3: -Explanation: The innate immune system is the non-specific immune system that you are born with. Cells of the innate immune system include mast cells, macrophages, neutrophils (and other white cells), natural killer cells, and complement (a group of proteins found in the blood).

Detailed explanation-4: -The nonspecific innate immune response provides a first line of defense that can often prevent infections from gaining a solid foothold in the body. These defenses are described as nonspecific because they do not target any specific pathogen; rather, they defend against a wide range of potential pathogens.

Detailed explanation-5: -Innate immunity is a non-specific immunity that is activated immediately or within a few hours when a foreign particle enters the body. Adaptive immunity is a specific type of immunity that is developed when a foreign particle or antigen enters the body and acts on the next exposure.