Eamcet Zoology - Unit- 5 Human Physiology -Breathing And Exchange of Gases Free Online Tests | Mock Tests | Preparation | Practice Tests

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Volume of thoracic cavity decreases dorsoventrally due to the

A. Relaxation of muscles of diaphragm

B. Relaxation of external inters costal muscles

C. Contraction of muscles of diaphragm

D. Contraction of external inter costal muscles

E. None of the above

View Answer

Correct choice: A

Explanation:

none

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