MCB2010 EXAM# 4 Questions with Complete Solutions

Innate resistance Correct Answer-bodies first and second line of defense First line of defense Correct Answer-to prevent pathogens entering the body, includes the skin and mucous membranes of respiratory, digestive, urinary, and reproductive systems, lacrimal apparatus, normal flora lacrimal apparatus function Correct Answer-produces, distributes, and removes tears normal flora Correct Answer-Microorganisms that reside in or on the body without causing disease Epidermis Correct Answer-shedding of dead skin cells removes attached microorganisms epidermal dendritic cells Correct Answer-phagocytic cells and help prevent microbial invasion epidermis benefit Correct Answer-skin is acidic and high salt (hypertonic) environment which helps prevent microbial invasion Dermis Correct Answer-skin has chemicals that defend against pathogens