Respiratory System Physiology

Front

What is the Inspiratory Reserve?

Back

The amount of air you can still inhale after a normal breath.

Front

What is the volume of a normal breath?

Back

500mL.

Front

What is Tidal Volume?

Back

The volume of air breathed in and out during one breath.

Front

What happens when the diaphragm contracts?

Back

The volume of the thoracic cavity increases and the pressure decreases, causing air to rush into the lungs.

Front

What is the main bone structure that protects the lungs?

Back

Rib cage.

Front

What is Vital Capacity?

Back

The maximum amount of air a person can expel after a maximum inhalation.

Front

What is Functional Residual Capacity?

Back

The volume of air remaining in the lungs after a normal expiration.

Front

What is Inspiratory Capacity?

Back

The maximum amount of air that can be inhaled after a normal expiration.

Front

What role does the diaphragm play in respiration?

Back

It contracts to increase thoracic cavity volume, allowing air to flow into the lungs.

Front

What is the purpose of the rib cage?

Back

To protect the lungs and heart and assist in the mechanics of breathing.