Inspiration involves ______?

General Science / General Science Class 10 MCQs — Multiple-choice practice

الہام میں ______ شامل ہے؟

  1. A. Inward movement of ribs
  2. B. Contraction of intercostals muscles
  3. C. Contraction of diaphragm
  4. D. Both a and b

Correct answer

Both a and b

Explanation

Explanation Inspiration, or inhalation, involves the contraction of two main muscle groups: Diaphragm : a dome-shaped muscle that separates the chest cavity from the abdominal cavity. When it contracts, it flattens and increases the volume of the chest cavity. Intercostal muscles : muscles located between the ribs. When they contract, they pull the ribs outward and upward, increasing the volume of the chest cavity.

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