Respiratory system functions Flashcards
1
Q
How do we Inhale
A
The diaphragm will contract and move downwards creating an increases in the size of the thoracic cavity, so that air can be forced in.
2
Q
How do we Exhale
A
The diaphragm returns to the dome shape, making the thoracic cavity smaller. This results in an increase in air pressure within the lungs allowing air to be exhaled.
3
Q
What is Tidal volume
A
The amount of air breathed in during each breath, depends on demand
4
Q
What is Vital capacity
A
The maximum amount of air that can be breathed in and out in one breath
5
Q
What is Residual Volume
A
The amount of air left in the lungs after an exhalation.
