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What is the primary muscle involved in inhalation?

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Question: What is the primary muscle involved in inhalation?

Options:

  1. Diaphragm
  2. Intercostal muscles
  3. Abdominal muscles
  4. Pectoral muscles

Correct Answer: Diaphragm

Solution: 

The diaphragm is the primary muscle involved in inhalation, contracting to increase the volume of the thoracic cavity and draw air into the lungs.

What is the primary muscle involved in inhalation?

Practice Questions

Q1
What is the primary muscle involved in inhalation?
  1. Diaphragm
  2. Intercostal muscles
  3. Abdominal muscles
  4. Pectoral muscles

Questions & Step-by-Step Solutions

What is the primary muscle involved in inhalation?
  • Step 1: Understand that inhalation is the process of breathing in air.
  • Step 2: Identify the main muscle used during this process.
  • Step 3: Learn that the diaphragm is a dome-shaped muscle located at the bottom of the ribcage.
  • Step 4: Know that when the diaphragm contracts, it moves downwards.
  • Step 5: Realize that this movement increases the space in the chest (thoracic cavity).
  • Step 6: Understand that as the space increases, air is drawn into the lungs.
  • Step 7: Conclude that the diaphragm is the primary muscle responsible for inhalation.
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