Respiratory System Flashcards
1
Q
List the passage of air from the mouth/nose onwards
A
Trachea
Bronchi
Bronchioles
Alveoli
2
Q
Where is Oxygen carried within the blood and what does it combine with?
A
Oxygen is carried in the red blood cells, where it combines with haemoglobin to form oxyhaemoglobin
3
Q
How much Oxygen is breathed in and out?
A
21% breathed in
17% breathed out
4
Q
How does the chest (thoracic) cavity increase in size when we breathe in?
A
The intercostal muscles contract to raise the rib cage up and out
The diaphragm contracts and flattens
5
Q
What is the term used to describe the amount of air left in your lungs after you have breathed out fully?
A
Residual volume
