Lung Capacity

• ↑

  • Lungs

• Tidal Volume $V_T$

  • 500cc | .5L
  • Volume of lungs during inspiration and expiration.

• Inspiratory Reserve Volume $IRV$

  • 3000cc | 3L
  • How much air can be inhaled beyond normal breath

• Expiratory Reserve Volume $ERV$

  • 1110cc | 1.1L
  • How much air can be exhaled beyond normal breath

• Vital Capacity $VC$

  • 4600cc | 4.6L
  • Maximal inhalation and exhalation

• Redidual Volume $RV$

  • 1200cc | 1.2L
  • Air left in lungs that can't leave.
    • It would collapse without the air left inside.

• Total Lung Capacity

  • 5800cc | 5.8L
  • $VC+RV$

• $TLC=VC+RV$

Images

!Respiratory Volumes.png