Chapter 6: Blood and the Lymphatic and Immune Systems Flashcards
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