Chapter 14 Vocab Flashcards
adaptive immunity
the ability to recognize and remember specific antigens and mount an attack on them
adenoids
mass of lymphatic tissue in the nasopharynx
antibody
protein produced by B cells to destroy antigens
antigen
substance that the body recognizes as foreign; evokes and immune response
axillary nodes
lymph nodes in the armpit
B cell (B lymphocyte)
lymphocyte that matures into a plasma cell to secrete antibodies
cell-mediated immunity
T cells (cytotoxic, helper and suppressor) respond to antigen and destroy them; a type of adaptive immunity
cervical nodes
lymph nodes in the neck region
complement system
set of proteins in the blood that help antibodies kill their target
cytokines
proteins secreted by cytotoxic C cells to aid in antigen destruction, ex. interferons and interleukins
cytotoxic T cell
lymphocyte that directly kills T cells; called (CD8+) T cell
dendritic cell
antigen-presenting cell; shows T and B cells what to attack
helper T cell
lymphocyte that aids B cells and stimulates T cells; also called (CD4+) T cell
humoral immunity
B cells produce antibodies after exposure to certain antigens; type adaptive immunity
immunity
bodys ability to resist foreign organisms and toxins that damage tissues and organs; includes natural and adaptive immunity
immunoglobulins
antibodies such as IgA, IgE, IgC, etc; secreted by plasma cells (mature B cells) in response to the presence of an antigen
immunotherapy
use of immune cells, antibodies or vaccines to treat or prevent disease