Immunology Flashcards
1
Q
pathogen
A
an organism or virus that causes a disease
2
Q
antigen
A
macromolecule that elicits an immune response; i.e. stimulates production of antibodies
3
Q
antibody
A
a y-shaped protein produced by B-lymphocytes and binds to a specific antigen
4
Q
active immunity
A
due to the production of antibodies by the organism itself
5
Q
passive immunity
A
due to the acquisition of antibodies from another organism in which active immunity has been stimulated
6
Q
components of blood
A
erythrocytes: red blood cells carry oxygen
leukocytes: white blood cells and immune system
platelets: used in clotting
7
Q
phagocytic cells
A
neutrophils are the first white blood cells on site
8
Q
memory cells
A
they launch a quicker attack on the same antigen next time
9
Q
vaccinations
A
stimulate artificial active immunity
