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  • The volume of air involved in breathing movements can be estimated by using a  Option: 1 Air Pressure</p

The volume of air involved in breathing movements can be estimated by using a

 

Option: 1

Air Pressure

 


Option: 2

Spirometer

 


Option: 3

Airometer

 


Option: 4

Spiro Pressure

 


Answers (1)

best_answer

 Mechanism of Breathing: Expiration -

 
  • Expiration takes place when the intrapulmonary pressure is higher than the atmospheric pressure.
  • Relaxation of the diaphragm and the intercostal muscles returns the diaphragm and sternum to their normal positions and reduce the thoracic volume and thereby the pulmonary volume.
  • This leads to an increase in intrapulmonary pressure to slightly above the atmospheric pressure causing the expulsion of air from the lungs, i.e., expiration
  • We have the ability to increase the strength of inspiration and expiration with the help of additional muscles in the abdomen. 
  • On average, a healthy human breathes 12-16 times/minute. 
  • The volume of air involved in breathing movements can be estimated by using a spirometer which helps in the clinical assessment of pulmonary functions.

 


Thus, the volume of air involved in breathing movements can be estimated by using a spirometer. Hence. the correct option is spirometer

 

 

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mansi

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