Module 3 Flashcards
What are the two types of immunity?
There is natural immunity also called innate/native and specific acquired immunity
Which type of immunity involves physical barriers such as skin, phagocytic cells, and natural killer cells and occur before exposure and respond non specifically?
Innate or natural immunity
Which type of immunity occurs after exposure to foreign substance and becomes more rapid and intense?
Specific acquired immunity
What is an antigen?
A foreign substance
What are two types of specific required immunity?
Cell mediated immunity and antibody mediated/humoral immunity
Which immunity involves antibodies?
Humoral immunity
What cells make antibodies?
B lymphocytes or B cells
All these cells are made from bone marrow
Lymphocytes (b cells, cytolytic t cells, helper T cells) , macrophages, dendritic cell
Which type of cells are attacked and HIV and AIDS patients?
Helper T cells
Which cells release factors that promote type 4 sensitivity reactions— delayed hypersensitivity reactions?
Helper T cells, CD4 cells
What are immune related actions of macrophages?
- are antigen presenting cells which promotes proliferation and differentiation of helper T cells and cytotoxic T cells
- involved in delayed type 4 hypersensitivity reaction (they are the final mediators)
- phagocytize cells tagged with antibodies
What are the two antigen presenting cells?
Macrophages and dendritic cells
Mast cells are derived from what cell?
Basophils
What sells involved in the immediate hypersensitivity reaction?
Mast cells
Neutrophils of ourselves I have been tag with antibodies of what immunoglobulin class?
IgG
Also mediate inflammation and phagocytize bacteria
Eosinophils attack and destroy foreign particles That have been coated with which antibody class?
IgE
What cells usually target helminiths or parasitic worms?
Eosinophils
Which cells are involved in immediate hypersensitivity?
Mast cells,
Basophils, and eosinophils
What are the five classes of antibodies?
IgA, IgD, IgE, IgG, IgM
Name this antibody:
Located in mucous membranes of GI tract and lungs, in secretions. Serves as first line defense against microbes. Transferred to infants via breast milk, not absorbed from the GI tract but protects the infant against microbes in the GI tract
IgA
Name this antibody:
Found on surface of Mature B cells
Serves as a receptor for antigen recognition along with igM
IgD
Name this antibody :
Binds to surface of Mast cells; stimulates release of histamine and other mediators of mast cells
Binds to parasitic worms to help to Lyse the worms
IgE
Name this antibody:
Promotes target cell lysis; transferred across placenta to fetal circulation providing neonatal immunity; it is the major antibody in blood
IgG
Name this antibody:
First antibody that is produced in response to an antigen, present on nature B cells
Works with IgD and serves as antigen recognition
IgM