Respiratory System

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Last updated 8:03 PM on 7/14/26
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5 Terms

1
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What does the respiratory system do?

Job: Help you breathe.

It does 2 things:

  1. Brings oxygen (O₂) into your body.

  2. Gets rid of carbon dioxide (CO₂).

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Easy Memory

O₂ IN ➜ CO₂ OUT

3
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"No Pretty Lady Tries Big Blue Apples."

  • Nose

  • Pharynx

  • Larynx

  • Trachea

  • Bronchi

  • Bronchioles

  • Alveoli

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Upper Respiratory Tract

Think "Above the windpipe."

Includes:

  • Nose

  • Pharynx (throat)

  • Larynx (voice box)

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Lower Respiratory Tract

Think "Below the windpipe."

Includes:

  • Trachea

  • Bronchi

  • Bronchioles

  • Lungs

  • Alveoli