Lecture 19 - Immune System 1 Flashcards
Resistance to disease
Immunity
Immune system has 2 intrinsic systems, which are the ___________ and ___________.
Innate defense system; adaptive defense system
____________ system is non-specific: recognizes patterns/classes of compounds
Innate
______________ system is specific: recognizes specific molecules
Adaptive
True or false: The immune system is a functional system rather than an organ system; it is a diffuse network of loosely connected things
True
Ture or false: Innate and adaptive defenses are intertwined: they release and recognize many of the same defensive molecules
True
Innate responses release proteins that alert cells of _____________ to foreign molecules.
Adaptive system
______________ defense system has 2 lines of defense
Innate
External membranes (skin and mucosae); serve as physical barrier
First line of defense
Antimicrobial proteins, phagocytes, and other cells; inhibit spread of invaders by ingesting them
Second line of defense
True or false: Inflammation is not the most important mechanism of the second line of defense.
False
Third line of defense attacks particular foreign substances; takes longer to react than innate system
Adaptive defense system