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प्रश्न
During inspiration, the inter-costal muscles ____________.
विकल्प
contract and pull the ribs upward and outward
relax and pull the ribs inwards
contract and pull the ribs inwards
relax and pull the ribs outwards
MCQ
रिक्त स्थान भरें
उत्तर
During inspiration, the inter-costal muscles contract and pull the ribs upward and outward.
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