Human defence responses Flashcards
1
Q
What are Pathogens?
A
They are microorganisms that cause disease`
2
Q
What are the 4 Human defense barriers?
A
Skin, mucus hairs, trachea, and bronchi lined with cilla and the stomach produces HCL
3
Q
What does the skin do?
A
Acts as a barrier to pathogens, it secretes antimicrobial substances which kill pathogens.
4
Q
What does the Hairs in the nose (mucus)?
A
The nose trap particles which contain pathogens.
5
Q
What does the cillia do in the stomach?
A
The hair-like structures waft the mucus up to the back of the throat where it can be swallowed.
6
Q
Why does the Stomach produce HCL?
A
Because it kills pathogens that make it far from the mouth.
