B3 - Breathing System

Question 1

What is the purpose of the breathing system?

Answer 1

To get oxygen into the body and to get carbon dioxide out of the body

Question 2

Describe where air goes after being breathed in

Answer 2

Air goes through the trachea which splits into 2 tubes called bronchi which split into even more smaller tubes called bronchioles and finally into small bags called alveoli where the gas exchange takes place

Question 3

What is ventilation?

Answer 3

The movement of air into and out of the lungs

Question 4

What is the thorax?

Answer 4

The upper part of the upper body which is separated from the abdomen by the diaphragm

Question 5

Describe the process of breathing in and breathing out

Answer 5

Breathing in happen when the intercostal muscles and diaphragm contract decreasing the pressure drawing air in
Breathing out is the opposite

Question 6

What are artificial ventilators?

Answer 6

Machines that move air (often with extra oxygen) into or out of the lungs by pumping air
They help people who can’t breathe for themselves

Question 6

What is the risk of artificial ventilators?

Answer 6

If the lungs can’t cope with the artificial air flow, damage like burst alveoli can occur

Question 7

What is the purpose of the lungs?

Answer 7

To transfer oxygen to the blood and to remove waste carbon dioxide from it