2.During inhalation, the diaphragm is contracted which increases the volume of the lungcavity. During exhalation, the diaphragm is relaxed which decreases the volume of thelung cavity. The given graph is related to the changes in the volume of lungs of a person at a rest over a period of 20 seconds.

Question
2.During inhalation, the diaphragm is contracted which increases the volume of the lungcavity. During exhalation, the diaphragm is relaxed which decreases the volume of thelung cavity. The given graph is related to the changes in the volume of lungs of a person at a rest over a period of 20 seconds.

(ii)Which of the following muscles help
during inhalation.

(a) External intercostal muscles

(b) Internal intercostal muscles
(c) Both (a) and (b
(d) None of these

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swatiqna 3 years 2021-12-19T08:51:37+00:00 1 Answer 8 views Enlightened 0

Answer ( 1 )

  1. swatiqna
    0
    2021-12-19T08:52:14+00:00
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    Answer. (c) Both (a) and (b)

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