Ch. 14: lymphatic & Immune System Flashcards
Define lymphedema
swelling of tissue due to interstitial fluid accumulation
Define lymphadenopathy
disease of lymph node
Define splenomegaly
enlarged spleen
Define lymph
thin watery fluid within lymphatic vessels
- collected from tissues throughout the body
Define interstitial fluid
fluid in the space between cells
Define lymph nodes
collection of stationary solid lymphatic tissue along lymph vessels
- contain cells that fight infections
Define spleen
organ in the LUQ of abdomen
- destroys worn-out red blood cells
- activates lymphocytes
- stores blood
Define thymus gland
lymphoid organ in the mediastinum
- conditions T-cells to react to foreign cells
- aids in the immune response
Define immunity
body’s ability to resist foreign organisms and toxins that damage tissues and organs
Define natural immunity
What are some examples?
protection that an individual is born with to fight infections
- neutrophils
- monocytes
- macrophages
- NK cells
Define adaptive immunity
the ability to recognize and remember specific antigens
- mount an attack on them
Define autoimmune
chronic, disabling diseases
- from abnormal production of antibodies to normal tissue
Define splenectomy
excision of the spleen
Unabbreviate AIDS
acquired immunodeficiency syndrome
Define allergy
abnormal hypersensitivity
- from exposure to an antigen
Define anaphylaxis
What are some examples?
extraordinary hypersensitivity reaction throughout the body
- fall in blood pressure
- shock
- respiratory distress
Define lymphoma
malignant tumor of lymph nodes and lymph tissue
Define ELISA
screening test to detect anti-HIV antibodies in the bloodstream
Define western biot
more specific test to determine HIV
Unabbreviate HIV
human immunodeficiency virus
Unabbreviate PCP
pneumocystis pneumonia opportunistic
