The Respiratory System

Question 1

What do the tubes take in?

Answer 1

air from surroundings and carry it to small air sacs where it can diffuse into the blood

Question 2

What are the small air sacs called?

Answer 2

Alveoli

Question 3

The lungs are in the…

Answer 3

Upper part of body (thorax)

Question 4

What are the lungs protected by?

Answer 4

Rib cage

Question 5

How are the lungs separated from the lower part of the body (abdomen)?

Answer 5

Muscular diaphragm

Question 6

Where does air pass into?

Answer 6

Trachea

Question 7

What is at the top of the trachea?

Answer 7

Larynx - which contains vocal chords

Question 8

When do the vocal chords make sound?

Answer 8

When air passes through them

Question 9

What does the trachea have surrounding it?

Answer 9

Rings of cartilage which keep trachea open

Question 10

What does the trachea branch into?

Answer 10

2 bronchi - 1 bronchus goes into each lung

Question 11

What branches off the bronchi?

Answer 11

Smaller tubes called bronchioles

Question 12

What is each lung covered in?

Answer 12

Thin smooth membrane

Question 13

What is also lined with a thin small membrane?

Answer 13

Rib cage

Question 14

What are the membranes

Called that lime the rib age and lungs?

Answer 14

Pleural membranes

Question 15

What is the trachea?

Answer 15

Wind pipe

Question 16

What are bronchioles?

Answer 16

Small tubes that carry air into and out of parts of lungs

Question 17

What is a Bronchus?

Answer 17

A branch of the trachea - 1 goes into each lung

Question 18

What is between the two membranes?

Answer 18

Pleural cavity containing a liquid - pleural fluid

Question 19

What does the pleural fluid do?

Answer 19

Lubricates inside of lungs as they inflate and deflate so lungs don’t rub against rib cage

Question 20

What does the respiratory system consist of?

Answer 20

Number of tubes

Question 21

What can we detect carbon dioxide with?

Answer 21

Limewater

Question 22

What colour does limewater change to in the presence of carbon dioxide?

Answer 22

Clear - milky white

Question 23

What colour does hydrogen carbonate turn in the presence of carbon dioxide?

Answer 23

Red/orange - yellow

Question 24

What colour does hydrogen carbonate turn when carbon dioxide is removed?

Answer 24

Red/orange - purple

Question 25

Why is it better to breathe through your nose than your mouth?

Answer 25

Because the hairs in your nose stop small particles coming into your lungs

Question 26

Why are the ribs so important?

Answer 26

They protect lungs from any damageable impact

Question 27

What are the small hairs called cilia lining the tubes of Bronchioles for?

Answer 27

Move mucus up airways to mouth where it is then swallowed