Statement I - During Inspiration contraction of diaphragm occurs which increases the volume of thoracic chamber in the dorso - ventrally axis. Statement II - The contraction of external inter-costal muscles increases the volume of the thoracic chamber in the anterio- posterior axis.
- ABoth statements are correct
- BBoth statement are incorrect
- CStatement I is incorrect but statement II is correct
- DStatement I is correct but statement II is incorrect
✓ Correct answer: B
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