P1 Study Deck Flashcards
Study of how bodily mechanisms can differentiate between self and nonself and eliminate those components that are deemed to be nonself
Immunology
Study of the body’s defense against infection
Immunology
Study of serum
Serology
The state or condition of being resistant to infection / ability to ward off infections
Immunity
2 general types of immunity
Innate and adaptive
Primary lymphoid organs
Bone marrow and thymus
Secondary lymphoid organs
Spleen, lymph nodes, lymphatic nodules (follicles)
Are the sites of stem cell division and become immunocompetent
Primary lymphoid organs
Refer to the areas where the majority of the immune responses take place
Secondary lymphoid organs
Also known as peripheral lymphoid organs
Secondary lymphoid organs
Sites of lymphocyte activation by antigen
Peripheral lymphoid organs
Fluid that carries antigen taken up by the dendritic cells and macrophages to the lymph nodes
Lymph
Cell-mediated immunity where T cells respond to the infected cells
Cellular immunity
Antibody-mediated immunity where B cells respond by secreting antibodies against a specific antigen
Humoral immunity
Categories of immune system
Natural or Innate Immunity
Adaptive or Acquired Immunity
Immunity wherein humans can naturally evade and fight off infections by natural means: present at birth; nonspecific; nonadaptive
Innate Immunity
Immunity that does not require prior encounter to pathogens
Innate immunity
Immunity that is not present at birth and is developed during a person’s lifetime
Adaptive or Acquired Immunity
Category of immunity where the reaction depends on the antigen ut encounters
Adaptive or Acquired Immunity
The mechanisms of ______ immunity provide the initial defense against infections.
Innate immunity
Element of innate immunity that is designed to protect the body from infectious agents by structural barriers, secretions, and growth of microorganisms.
External Defense System
Examples of external defense system of innate immunity
Physical / anatomical barriers
Normal Flora
Examples of physical or anatomical barriers in innate immunity
Skin, mucus membrane, secretions
Examples of normal flora used in innate immunity
S. epidermidis (skin) and L. acidophilus (vagina)
Element of Innate immunity where cells like WBCs and antibodies are the major factors
Internal Defense System
Examples of internal defense system of innate immunity
Cellular factors, humural factors, inflammation