PSYC 1002 Lecture Notes - Lecture 6: Stress Management, Natural Killer Cell, Cytotoxic T Cell
21 Mar 2017
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Document Summary
Mounting an immune response: the body has few ways to protect itself from invasion. Non-specific cells and substances that can attack all invaders. Antibodies and cells specifically tailored for the antigen. Markers of non-self: foreign molecules(antigens) carry distinctive markers, characteristic shapes called epitopes that protrude from their surfaces. Organs of the immune system: lymphoid organs. Organs of the immune systemare stationed throughout the body. They are concerned with the growth, development, and deployment of lymphocytes- white blood cells that are key operatives of the immune system. Cells are destined to become immune cells, like all blood cells, arise in the bone marrow from so-called stem cells. B-cells: b-cells or b-lymphocytes are the cells responsible for producing antibodies, antibodies are proteins that circulate in our blood stream looking for antigens (foreign invaders) T-cells: t cells contribute to the immune defenses in two major ways.
