A&P 2 University Of Memphis -Chapter 21 A&P 2 fully solved

A&P 2 University Of Memphis -Chapter 21 A&P 2 fully solvedInnate (nonspecific) defense system - correct answer Is always prepared responding within minutes to protect the body from foreign substance. This system has two line of defense. First line of defense is the external body membranes intact skin and mucosae. The second line of defense relies on internal defenses such as antimicrobial proteins, phagocytes, and other cells to inhibit the invaders spread to body. Adaptive (specific) defense system - correct answer Functions like an elite fighting force equipped with high tech weapons to attack particular foreign substances. Provides the third line of defense takes considerably longer. Immune system - correct answer Is a functional system rather than an organ system in an anatomical sense. It protects the body from most infectious microorganisms, cancer cells, and transplanted organs and grafts. By cell attack and releasing mobilizing chemicals and protective antibody molecules. What is a pathogen: - correct answer Harmful or disease causing microorganisms What is a natural killer cell? - correct answer Are a group of defensive cells that can lyse and kill cancer cells and virus infected body cells before the adaptive immune system is activated. They are part of a small GROUP OF LARGE GRANULAR lymphocytes. Inflammation - correct answer Is triggered whenever the body tissues are injured by physical trauma, intense heat, irritation chemicals, or infection by viruses, fungi, or bacteria. Function of inflamation - correct answer Prevents the spread of damaging agents to nearby tissues, it disposes of cell debris and pathogens, it alerts the adaptive immune system, and it sets the stage for repair. Four cardinal signs of short term or acute inflammation - correct answer Redness, heat, swelling, and pain.