Final Exam: Bio 203 Questions & Solutions(GRADED A)

susceptibility - ANSWER lack of resistance to a disease immunity - ANSWER ability to ward off disease innate immunity - ANSWER - defense against any pathogen - present at birth - always present, but does not involve memory response first line of defense - ANSWER - intact skin - mucous membranes and their secretions: line the GI, respiratory; secretes mucus that traps microbes - ciliary escalator - lacrimal apparatus: washes the eye - saliva: washes microbes off teeth and mouth - urine: flows out, cleansing the urethra - vaginal secretions - normal microbiota ciliary escalator - ANSWER transports microbes trapped in mucus away from the lungs second line of defense - ANSWER -phagocytes, such as neutrophils, eosinophils, dendritic cells, and macrophages -inflammation -fever -antimicrobial substances adaptive immunity - ANSWER immunity or resistance to a specific pathogen that has breached the innate immunity - involves T and B lymphocytes