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Question Practice

How do intercostal muscles assist in breathing?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 11
Biology
Biology
Breathing and Exchange of Gases
Question Bank

How do intercostal muscles ass...

Single Answer MCQ
Q-00056344

How do intercostal muscles assist in breathing?

1

By causing rhythmic contraction of the diaphragm

2

By lifting the ribcage and expanding thoracic volume

3

By closing off the trachea during swallowing

4

By preventing the lungs from collapsing

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