PULMONARY VENTILATION MOVEMENTS ARE DUE TO
A)COSTAL MUSCLES
B)DIAPHRAGM
C)WALL OF LUNGS
D)COSTAL MUSCLES AND DIAPHRAGM

Pulmonary ventilation movements are due to costal muscles and diaphragm. Hence, option (D) is correct.

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D) Costal muscles and Diaphragm.
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