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Respiratory System Organs

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Respiratory System Organs

Are all noses alike?

It all starts with the nose. OK, in humans maybe not the nose pictured above, but one similar to the nose below. Though the passage of air is probably similar in cows and humans. Air comes in and then where does it go?

Organs of the Respiratory System

The organs of the respiratory system that bring air into the body are divided among the upper respiratory tract and lower respiratory tract. These organs are shown in Figure below . In addition to the lungs , these organs include the pharynx, larynx, trachea and bronchi. The nasal cavity is also part of the respiratory system.

The organs of the respiratory system move air into and out of the body.

You can also watch a detailed animation of the respiratory system at this link: http://www.youtube.com/watch?v=hc1YtXc_84A .

  • The pharynx is a long tube that is shared with the digestive system.
  • The larynx , or voice box, contains vocal cords, which allow us to produce vocal sounds.
  • The trachea , or wind pipe, is a long tube that leads down to the chest.
  • The trachea divides as it enters the lungs to form the right and left bronchi .

Summary

  • The organs of the respiratory system include the lungs, pharynx, larynx, trachea, and bronchi.

Practice I

Use this resource to answer the questions that follow.

  1. What are the main organs of the human respiratory system?
  2. Describe the following:
    1. pharynx
    2. glottis
    3. epiglottis
    4. bronchioles
    5. alveoli
    6. diaphragm

Practice II

Review

1. Describe the main organs of the respiratory system.

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