Breathing and Exchange of GasesHard
Question
Which one of the following statements is correct
(A) During the expulsion of air from the lungs the thoracic volume and there by the pulmonary volume is reduce this leads to an increase in intra pulmonary pressure to slightly above the atmospheric pressure.
(B) During the expulsion of air from the lungs the thoracic volume and thereby the pulmonary volume is reduce this leads to an decreases in intra pulmonary pressure to slightly above the atmospheric pressure.
(C) We have the ability to increase the strenght of inspiration and expiration with the help of additional muscle in the abdomen.
(D) The volume of air involved in breathing movements can be estimated by using a spirometer which helps in clinical assessment of pulmonary functions.
(A) During the expulsion of air from the lungs the thoracic volume and there by the pulmonary volume is reduce this leads to an increase in intra pulmonary pressure to slightly above the atmospheric pressure.
(B) During the expulsion of air from the lungs the thoracic volume and thereby the pulmonary volume is reduce this leads to an decreases in intra pulmonary pressure to slightly above the atmospheric pressure.
(C) We have the ability to increase the strenght of inspiration and expiration with the help of additional muscle in the abdomen.
(D) The volume of air involved in breathing movements can be estimated by using a spirometer which helps in clinical assessment of pulmonary functions.
Options
A. only A
B.A, B and C
C.B and C
D.A, C and D
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