Non-specific Defences Flashcards
1
Q
What do non-specific defences do? How quick do they act?
A
They respond in the same way to all pathogens
They act immediately
2
Q
What are the two forms?
A
A barrier to block pathogens
Phagocytosis
3
Q
What are the types of barriers?
A
Eyes, nose, lungs, skin, blood, stomach
4
Q
How does the stomach act as a barrier?
A
Hydrochloric acid
5
Q
How does the blood act as a barrier?
A
Blood clots/scabs
6
Q
How does the skin act as a barrier?
A
Tough barrier
Hair follicles make sebum (oily substance)
7
Q
How do the lungs act as a barrier?
A
Goblet cells (mucus) Cillated cells (cilia)
8
Q
How does the nose act as a barrier?
A
Lines with hair and mucus
9
Q
How do the eyes act as a barrier?
A
Blinking (eyelids/eyelashes)
Tears contain salt&lysozyme
