: Understanding volumes and capacities of human respiratory system #IndiaNEWS #Education Today Hyderabad: This article is in continuation to the previous article that focused on the human respiratory

@IndiaNEWS

Posted in: #IndiaNEWS #Education

Understanding volumes and capacities of human respiratory system #IndiaNEWS #Education Today
Hyderabad: This article is in continuation to the previous article that focused on the human respiratory system. In this article, we will discuss the respiratory volumes and capacities:
Respiratory volumes and capacities
Tidal Volume (TV):
• Volume of air inspired or expired during a normal respiration. It is approximately 500 mL, i.e., a healthy man can inspire or expire approximately 6000 to 8000 mL of air per minute.
Inspiratory Reserve Volume (IRV):
• Additional volume of air a person can inspire by a forcible inspiration. This averages 2500 mL to 3000 mL.
Expiratory Reserve Volume (ERV):
• Additional volume of air, a person can expire by a forcible expiration. This averages 1000 mL to 1100 mL.
Residual Volume (RV):
• Volume of air remaining in the lungs even after a forcible expiration. This averages 1100 mL to 1200 mL. By adding up a few respiratory volumes described above, one can derive various pulmonary capacities, which can be used in clinical diagnosis.
Inspiratory Capacity (IC):
• Total volume of air a person can inspire after a normal expiration. This includes tidal volume and inspiratory reserve volume (TV IRV).
Expiratory Capacity (EC):
• Total volume of air a person can expire after a normal inspiration. This includes tidal volume and expiratory reserve volume (TV ERV).
Functional Residual Capacity (FRC):
• Volume of air that will remain in the lungs after a normal expiration. This includes ERV RV.
Vital Capacity (VC):
• The maximum volume of air a person can breathe in after a forced expiration. This includes ERV, TV and IRV or the maximum volume of air a person can breathe out after a forced inspiration.
Total Lung Capacity (TLC):
• Total volume of air accommodated in the lungs at the end of a forced inspiration. This includes RV, ERV, TV and IRV or vital capacity residual volume.
To be continued.

Intraday stocks under 50 NSE India Twitter of India

Vote Up Vote Down

Login to post a comment!