Mechanics of breathing

An increase in volume will__________________ pressure

Pressure_____________ as a result of a decrease in volume

The lungs are contained in the ______________ Cavity

• Lung

• Thoracic

• Pleural

There has to a pressure gradient for us to breathe in and out

• True

• False

As air is tranported into it lungs it travels through/pass the ... Choose all that are correct

• The Trachea

• The Bronchus

• Brochioles

• Alveoli

• Pleural cavity

When we want to inhale the ribs have to move

• Upwards and outwards

• Inwards and downwards

When we want to exhale, the rib cage has to move

• Upwards and outwards

• Inwards and downwards

When we want to inhale the intercostal muscles

• relax

• contact

In order to exhale the intercostal musles need to:

• contract

• relax

To inhale the diaphragm

• contracts

• relaxes