Chapter 6: Blood and the Lymphatic and Immune Systems Flashcards
(29 cards)
formed elements
Erythrocytes
Platelets
Leukocytes
organs of the lymphatic system
Lymph nodesLymphatic vesselsThymus glandSpleenTonsils
active immunity
Develops following direct exposure to a pathogen
splenomegaly
an enlarged spleen
anemia
group of conditions characterized by a reduction in number of RBCs or the amount of hemoglobin; results in less oxygen reaching tissues
type A
Type A blood produces anti-B antibodies
Anti-B antibodies attack type B and type AB blood
passive immunity
Results when a person receives protective substances produced by another human or animal
sickle cell
genetic disorder where RBCs take on abnormal sickle shape; become more fragile leading to hemolytic anemia
rh factor
positive or negative
autoimmune disease
disease resulting from immune system attacking its own body is if a pathogen; examples include rheumatoid arthritis and systemic lupus erythematosus
hematocrit
measures volume of RBCs
how we do blood typing
must do blood typing before a transfusion
Type B
Type B blood produces anti-A antibodies
Anti-A antibodies attack type A and type AB blood
type O
has no marker
Type O blood produces anti-A and anti-B antibodies These antibodies will attack type A, type B, and type AB blood
abo system
There are two possible RBC markers, A and B
acquired immunity
Body’s response to a specific pathogen
passive or active
RH-
Will produce anti-Rh antibodies
no RH factor
Rh– person can receive only Rh– blood
types of blood markers
ABO system and Rh factor
humoral
Involves production of B lymphocytes
Respond to antigens by producing a protective protein, an antibody
Antibodies combine with antigen to form an antigen-antibody complex
Targets pathogen for phagocytosis
Prevents infectious agent from damaging healthy cells
lymphedema
excessive tissue fluid due to blocked lymphatic flow
aids
defect in cell-mediated immunity; result of final stages of HIV infection
allergy
hypersensitivity to a common substance; substance is called an allergen
types of immunities
natural
acquired
immune responses
humoral
cellular