Which of the following is correct
i) the diaphragm contracts - volume of chest cavity increased
ii) the diaphragm contracts - volume of chest cavity decreased
iii) the diaphragm expands - volume of chest cavity increased
iv) the diaphragm expands - volume of chest cavity decreased
a) i
b) i & ii
c) ii & iii
d) iv
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The correct answer is ⇒ ( C ) i.e. ( ii & iii )
The diaphargm contracts - vol. of chest cavity decreased and when it expands the vol. of chest cavity increased.
The diaphargm contracts - vol. of chest cavity decreased and when it expands the vol. of chest cavity increased.
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