Nonspecific Defenses Ck 12 Foundation

Nonspecific Defenses Ck 12 Foundation The first line of defense consists of different types of barriers that keep most pathogens out of the body. the first line of defense includes the inflammatory response. leukocytes are the cells responsible for the first line of defense. the first line of defense includes the skin, mucous membranes and biological barriers such as white blood cells. Details. attributions. describe the barriers that keep most pathogens out of the human body. explain how the inflammatory response and nonspecific leukocytes help fight pathogens that enter the body. the immune system protects the body from worms, germs, and other agents of harm. the immune system is like a medieval castle.

Nonspecific Defenses Ck 12 Foundation F. chemicals that destroy pathogens at the body’s surface. g. proteins that act as chemical signals used to communicate between cells. h. a complex biological reaction to tissue damage; one of the first responses of the immune system to infection or injury; triggered by chemicals called cytokines and histamines. The chemicals that trigger an inflammatory response attract leukocytes to the site of injury or infection. leukocytes are white blood cells. their role is to fight infections and get rid of debris. leukocytes may respond with either a nonspecific or a specific defense. a nonspecific defense is the same no matter what type of pathogen is involved. Immune system has a series of defenses. in fact, it has three lines of defense. only pathogens that are able to get through all three lines of defense can harm the body. the first line of defense the body’s first line of defense consists of different types of barriers that keep most pathogens out of the body. The main immune function of the lymphatic system is to produce, mature, and circulate lymphocytes, which are the main cells in the adaptive immune system. the neuroimmune system is a system that protects the brain and spinal cord from pathogens and other causes of disease. it includes the blood brain and blood spinal cord barriers.