CH 14: Pathology Flashcards
B cell (B lymphocyte)
lymphocyte that matures into a plasma cell to secrete antibodies. The B refers to the bursa of Fabricius, an organ in birds in which B cell differentiation and growth were first noted to occur
cytotoxic T cell
lymphocyte that directly kills antigens, called CD-8 positive T cell
helper T cell
lymphocyte that aids B cells and stimulates T cells. Also called CD4 positive T cell
lymph
thin, watery fluid found within lymphatic vessels and collected from tissues throughout the body.
T cell (T lymphocyte)
lymphocyte that acts directly on assigns to destroy them or produce chemicals such as interferons and interleukins that are toxic to antigens
acquired immunodeficiency syndrome (AIDS)
group of clinical signs and symptoms associated with suppression of the immune system and marked by opportunistic infections, secondary neoplasms, and neurologic problems; HIV destroys helper T cells
Kaposi sarcoma
malignancy associated with AIDS; cancer arising from the lining cells of capillaries that produce dark purplish skin nodules
lymphoma
cancer nodes
Wasting syndrome
marked by weight loss marked by AIDS
allergy
abnormal hypersensitivity acquired by exposure to an antigen
allergic rhinitis
hay fever; caused by pollen or animal dander
systemic anaphylaxis
extraordinary hypersensitivity reaction throughout body leading to hypotension
asthma
pollen, dust, molds
hives
caused by food, drugs
atopic dermatitis
rash from soaps, cosmetics, chemicals
- atopic: related to atopy, hypersensitivity or allergic state arising from inherited predisposition
