English

During exhalation, the ribs ______.

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Question

During exhalation, the ribs ______.

Options

  • move outwards

  • move downwards

  • move upwards

  • do not move at all

MCQ
Fill in the Blanks
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Solution

During exhalation, the ribs move downwards.

Explanation:

During exhalation, the ribs move downwards to help decrease the volume of the chest cavity, pushing air out of the lungs.

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Chapter 6: Respiration in Organisms - Exercises [Page 67]

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NCERT Science [English] Class 7
Chapter 6 Respiration in Organisms
Exercises | Q 5. (d) | Page 67
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