Podcast
Questions and Answers
What are the components of the three defenses the body has against infection?
What are the components of the three defenses the body has against infection?
Physical and Chemical Barriers: Skin, mucous membranes, stomach acid. Innate Immune System: Phagocytes, natural killer cells, inflammation. Adaptive Immune System: B cells and T cells.
What are the different types of immunity?
What are the different types of immunity?
Innate Immunity: Immediate, non-specific defense. Adaptive Immunity: Specific defense with memory, involving humoral (B cells) and cell-mediated (T cells) immunity.
What factors increase risk for developing infections?
What factors increase risk for developing infections?
Compromised immune system Chronic diseases (e.g., diabetes, HIV) Poor hygiene Age (very young or elderly) Hospitalization or surgical procedures
Flashcards
Physical and Chemical Barriers
Physical and Chemical Barriers
The body's first line of defense against infection. It includes physical barriers like skin and mucous membranes, and chemical barriers like stomach acid.
Innate Immunity
Innate Immunity
The body's immediate, non-specific defense system. It relies on cells like phagocytes and natural killer cells, as well as inflammation.
Adaptive Immunity
Adaptive Immunity
The body's specific defense system that adapts to recognize and target specific pathogens. It involves B cells (humoral immunity) for antibody production and T cells (cell-mediated immunity) for direct cell killing.
