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CELL RECOGNITION + THE IMMUNE SYSTEM (5.2 PHAGOCYTOSIS (How phagocytes…
CELL RECOGNITION + THE IMMUNE SYSTEM
5.2 PHAGOCYTOSIS
How phagocytes find pathogen?
Process
5.1 DEFENCE MECHANISMS
1st line of defense
is:
non-specific
immediate
Physical
Skin
Cillia
Chemical
Mucus
Tears (has enzymes in them)
HCl (stomach acid)
PHAGOCYTOSIS
(5.2)
2nd line of defence
T lymphocytes + cell mediated immunity
(5.3)
B lymphocytes + humoral immunity
(5.4)