Respiratory Physiology review

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

• diaphragm contracts and moves downward

• intrapulmonary pressure decreases

• air flows into lungs

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

• air flows out of the lungs

• diaphragm relaxes and moves upward

• volume of thoracic cavity decreases

• intrapulmonary pressure increases

Match the following

• atmospheric pressure

• 760 mm Hg

• intrapulmonary pressure leading to an inhale

• 4 mm Hg

• intrapulmonary pressure leading to an exhale

• 761 mm Hg

• transpulmonary pressure

• 759 mm Hg

• intrapleural pressure

• 756 mm Hg

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

a

b

c

d

atmospheric

intrapulmonary

transpulmonary

intrapleural

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.

• intrapulmonary pressure

• the pressure inside the lung

• trans-pulmonary pressure

• a synonym for intrapulmonary pressure

• intrapleural pressure

• the pressure of air outside of the body

• atmospheric pressure

• the pressure in the fluid filled space surrounding the lung

• intra-alveolar pressure

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