Introduction Flashcards

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1
Q

What does the human defence system allow?

A

It allows the body to resist infection.

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2
Q

What two parts does the human defence system consist of?

A

The general defence system and the specific defence system

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3
Q

What does the general defence system consist of? What does it aim to do?

A

It consists of the skin, mucous membranes and their secretions. They attempt to prevent the entry of all pathogens

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4
Q

What does the specific defence system consist of? What does it aim to do?

A

It consists of white blood cells and chemicals that destroy any pathogens that penetrate the body.
It attacks particular pathogens, either by producing antibodies against them or by killing infected cells.

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5
Q

What is the specific defence system also known as?

A

the immune system

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6
Q

Define a pathogen

A

It is an organism that causes disease

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7
Q

Define immunity

A

Immunity is the ability to resist infection

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