Respiratory System. Flashcards
Breathing Mechanics. Spirometer Trace. Lung Volumes. Gaseous Exchange.
Which are the Inspiratory muscles at Rest?
Diaphragm.
External Intercostals.
What are the Inspiratory muscles During Exercise?
Diaphragm.
External Intercostals.
Sternocloidmastoid.
Scalenes.
Pectorals Minor.
What are the Expiratory muscles During Exercise?
Internal Intercostals.
Abdominals.
Define Tidal Volume.
The volume of air breathed in or out per breath.
What happens to Tidal Volume during Exercise?
It stays the same.
Define Inspiratory Reserve Volume.
The volume of air that can be breathed in after a normal breath.
What happens to Inspiratory Reserve Volume during Exercise?
It decreases.
Define Expiratory Reserve Volume.
The volume of air that can be breathed out after a normal breath.
What happens to Expiratory Reserve Volume during Exercise?
It increases.
Define Residual Volume.
The volume of air that remains in the lungs after a maximal expiration.
What happens to Residual Volume during Exercise?
It stays the same.
What is on the Y-axis of the Spirometer Trace?
Volume of air in lungs [ml]
What is on the X-axis of the Spirometer Trace?
Time.
What is the equation related to the Spirometer Trace?
Breathing Rate x Tidal Volume = Minute Ventilation.
Define Minute Ventilation.
The volume of air breathed in or out per minute.
