Immune Flashcards
First line of defense against infections
Innate Immune System
One of the 1st responses, when blood vessels dilate & white blood cells & fluids are sent to the area of infection
Inflammatory Response (Innate Defense)
Types of the immune system
Innate and Adaptive
Causes an increase in blood flow and phagocytes in the area when released
Histamines
White blood cells that destroy unknown bacteria
Phagocytes
Second line of defense against infection
Adaptive Defense System
Skin, Mucous Membranes, Enzymes, and Stomach Acid
Innate Immune System
Lymphatic System, White Blood Cells, and Antibodies
Adaptive Defense System
Foreign invaders the body has been exposed to (Bacteria & Viruses) that induce an immune response
Antigens
White blood cells that engulf the foreign invader and present the antigen on its surface
Antigen-Presenting Cells
Type of white blood cell that helps to activate other cells of the immune system
Helper T Cells
Induce B cells to secrete a large # of antibodies to bind to the antigen
Helper T Cells
Type of white blood cell that destroys infected cells
Cytotoxic T Cells
Chemicals that help to regulate the immune response and activate Cytotoxic T Cells
Cytokines
Proteins that attach to antigens and help to destroy them
Antibodies
White blood cells that remember a specific foreign invader and help the body to respond more quickly if invader enters body again
Memory T Cells
2 Types of Immunity
Passive & Active
When the body is exposed to antibodies that have been made by another individual, such as when a mother passes antibodies to her child through breastmilk
Passive Immunity
When the body produces its own antibodies in response to infection, this type of immunity is usually longer lasting
Active Immunity
