natural and artificial Flashcards
1
Q
natural active
A
Antigens enter the body naturally; body induces antibodies and specialised lymphocytes.
2
Q
natural passive
A
Antibodies pass from mother to fetus via the placenta or infant via the mother’s milk.
3
Q
artificial active
A
Antigens are introduced in vaccines; the body produces antibodies and specialised lymphocytes.
4
Q
Artificial passive
A
Preformed antibodies in immune serum are introduced by injection.
