<meta http-equiv="refresh" content="1; url=/nojavascript/">
Skip Navigation

13.33: Respiratory System Organs

Difficulty Level: At Grade Created by: CK-12
Atoms Practice
Practice Respiratory System Organs
Practice Now

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.

Respiratory system organs

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 .


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

Explore More


  1. Describe the main organs of the respiratory system.




(singular, bronchus): A passage of airway in the respiratory tract that conducts air into the lungs; branches into smaller tubes, which become bronchioles.


Organ of the respiratory system between the pharynx and trachea; also called the voice box because it allows the production of vocal sounds.
nasal cavity

nasal cavity

A large air filled space above and behind the nose in the middle of the face.


Long, tubular organ that connects the mouth and nasal cavity with the larynx through which air and food pass.
respiratory tract

respiratory tract

The part of the anatomy involved with the process of respiration.


Long, tubular organ of the respiratory system, also called the wind pipe, that carries air between the larynx and lungs.

Image Attributions


Difficulty Level:

At Grade


Date Created:

Feb 24, 2012

Last Modified:

Jun 24, 2015
You can only attach files to Modality which belong to you
If you would like to associate files with this Modality, please make a copy first.


100 % of people thought this content was helpful.
( 0 )
Loading reviews...
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original

Original text