Physical defences against disease Flashcards Preview

Z AS Biology: Unit 1 > Physical defences against disease > Flashcards

Flashcards in Physical defences against disease Deck (16)
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1
Q

Skin

A

Unbroken, dry skin provides a covering to prevent microbes getting in

2
Q

Skin

A

Unbroken, dry skin provides a covering to prevent microbes getting in

3
Q

Mucus

A

A sticky liquid that traps microbes in the nose and trachea

4
Q

Coughing

A

Moves microbe-containing mucus out of the windpipe

5
Q

Stomach

A

Acid kills most microbes; poisons are removed by sickness and diarrhoea

6
Q

Vaginal mucus

A

The low pH protects against some infections, as do the normal population of bacteria

7
Q

Eyes

A

The blink reflex provides protection; microbes are washed out by a watery fluid containing lysozyme enzymes

8
Q

Trachea

A

The trachea contains cilia, which move mucus to the back of the throat to be spat out or swallowed

9
Q

Scab

A

Platelets weave a scab that covers an open wound; infections are destroyed by white blood cells

10
Q

Mucus

A

A sticky liquid that traps microbes in the nose and trachea

11
Q

Coughing

A

Moves microbe-containing mucus out of the windpipe

12
Q

Stomach

A

Acid kills most microbes; poisons are removed by sickness and diarrhoea

13
Q

Vaginal mucus

A

The low pH protects against some infections, as do the normal population of bacteria

14
Q

Eyes

A

The blink reflex provides protection; microbes are washed out by a watery fluid containing lysozyme enzymes

15
Q

Trachea

A

The trachea contains cilia, which move mucus to the back of the throat to be spat out or swallowed

16
Q

Scab

A

Platelets weave a scab that covers an open wound; infections are destroyed by white blood cells