What equipment is used to measure air being inspired and expired?

• spirometre
• spirometer
• inspirometer
• expirometer

When air pressure inside the lungs is less than air pressure in the atmosphere...

• Air moves into the lungs
• Air moves out of the lungs

When the diaphragm contracts...

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

When air pressure inside the lungs is greater than air pressure in the atmosphere...

• Air moves into the lungs

• Air moves out of the lungs

Put the following in order as they occur in an inspiration.

• volume of thoracic cavity increases

• air flows into lungs

• diaphragm contracts and moves downward

• intrapulmonary pressure decreases

Put the following in order as they occur in an expiration.

• diaphragm relaxes and moves upward

• intrapulmonary pressure increases

• volume of thoracic cavity decreases

• air flows out of the lungs

Match the following

• intrapleural pressure

• 760 mm Hg

• transpulmonary pressure

• 756 mm Hg

• intrapulmonary pressure leading to an exhale

• 759 mm Hg

• intrapulmonary pressure leading to an inhale

• 761 mm Hg

• atmospheric pressure

• 4 mm Hg

Identify the arrows from the diagram with the respiratory pressure they indicate.

a

b

c

d

intrapulmonary

transpulmonary

intrapleural

atmospheric

When intrapleural pressure is greater than intrapulmonary pressure the lung will....

• inflate

  (inhale)

• deflate (exhale)

• collapse (pneumothorax)

• be at rest (no change)

Tags

NGSS.HS-LS1-3

Match the following definitions to the term.

• trans-pulmonary pressure

• the pressure inside the lung

• intrapleural pressure

• the difference in pressure from inside the lung to the pleural cavity

• intra-alveolar pressure

• the pressure in the fluid filled space surrounding the lung

• atmospheric pressure

• a synonym for intrapulmonary pressure

• intrapulmonary pressure

• the pressure of air outside of the body