PATHOPHYSIOLOGY NURS 231 EXAM 3.| VERIFIED ANSWERS,.

PATHOPHYSIOLOGY NURS 231 EXAM 3.Question 1 5 / 5 pts Short answer Explain how the skin’s physical barrier makes it inhospitable to microorganisms. Your Answer: It has closely packed cells in multiple layers that are continuously being shed. Keratin covers the skin, which creates a salty, acidic environment inhospitable to microbes. It also contains antimircrobial proteins and lysozymes that inhibit microorganisms and help to destroy them. It has closely packed cells in multiple layers that are continuously being shed. Keratin covers the skin, which creates a salty, acidic environment inhospitable to microbes. It also contains antimicrobial proteins and lysozymes that inhibit microorganisms and help to destroy them. Question 2 2.5 / 2.5 pts Multiple Choice: Which type of immunity is characterized by the development of a specific response to an antigen? Innate immunity Correct! Adaptive immunity Autoimmunity Active immunity Question 3 2.5 / 2.5 pts Multiple Choice: What allows the lymphocyte to differentiate between self and foreign molecules? Antigen presenting cells Regulatory cells Correct! Major histocompatibility complex (MHC) molecule Effector cells