Lesson 18 Flashcards
The scientific study of the immune system and immune response
Immunology
Scientist who study various aspects of the immune system
Immunologist
It is considered as the third line of defense
Immune system
It is considered as a specific host defense mechanism because it springs into action to defense against a specific pathogen
Immune system
Understanding immunology boils down to two terms
Antigens
Antibodies
Molecules that stimulate the immune system to produce antibodies
Antigens
Proteins produced by the immune system in response to antigens
Antibodies
Primary function of the immune system
Differentiate between self and non-self
Destroy that which is non-self
Two major arms of immune system
Humoral immunity
CMI (Cell Mediated Immunity)
Always involves the production of antibodies in response to antigens
Humoral Immunity
Involves various type of cells, with antibodies only playing a minor role
Cell Mediated Immunity
Humoral Immunity
B Cells or T Cells?
B Cells
Cell Mediated Immunity
B Cells or T Cells?
T Cells
Hunoral immunity is mediated by antibodies
Antibodies-mediated Immunity
Immunity that results from the active production or receipt of protective antibodies during one’s lifetime
Acquired Immunity
Two types of Acquired Immunity
Active Acquired Immunity
Passive Acquired Immunity
Antibodies that are actually produced within the person’s body
Active Acquired Immunity
Immunity that results from a vaccine
Artificial Active Acquired Immunity
The person receives antibodies that were produced by another person or by more than one person
Passive Acquired Immunity
This acquired immunity is temporary
Passive Acquired Immunity
Acquired by an acquired immunity fetus when it receives antibodies un utero; infant receives colostrum
Natural Passive Acquired Immunity
Acquired when acquired immunity a person receives antibodies contained in antisera or gamma globulin
Artificial Passive Acquired Immunity
Defined as material that can artificially induce immunity to an infectious disease
Vaccine
Deliberately exposes a person to a harmless version of pathogen or toxin
Vaccination
The process of weakening of pathogens
Attenuation
This should not be given to immunosuppresed individuals
Attenuated Vaccines
Vaccines made by pathogens that have been inactivated viruses or viral antigens; killed by heat or chemicals
Inactivated vaccines
Also known as acellular vaccine
Subunit Vaccine
Major cell types that participate in immune responses
B-lymphocytes
T-lymphocytes
Nk cells
Macrophages
These cells of immune system produces antibodies
B-lymphocytes
These cells of immune system are usually found in cander patients
Nk cells
These cells of immune system aids in tissue repair
Macrophages
Two major categories of T-cells
Helper T-cells
Cytotoxic T-cells
Also known as T-helper cells, Th cells, and CD4 cells
Helper T cells
Also known as T-cytotoxic cells, TC cells, and CD8 cells
Cytotoxic T cells
Primay function is secretion of cytokines
Helper T cells
This T CELLS destroy infected host cell, foreign cells, or tumor cells
Cytotoxic cells
