The Respiratory System Flashcards
1
Q
How does oxygen enter the body?
A
Oxygen is inhaled through the mouth and down the oesophagus and trachea.
2
Q
What is the bronchus?
A
A branch of the trachea.
3
Q
What is the bronchiole?
A
A branch of the bronchus.
4
Q
What happens in the alveoli?
A
This is where gas exchange happens.
The alveoli has a large surface area.
5
Q
What is the role of the diaphragm?
A
The diaphragm moves up and down to bring air in and out.
6
Q
What is the role of the heart?
A
The heart pumps blood.
7
Q
What is the role of the intercostal muscle?
A
The intercostal muscle allows the ribs to expand.
8
Q
What is the role of the ribs?
A
The ribs protect the lungs.
