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Alveoli, Alveoli ducts, Respiratory Bronchioles (Respiratory Zone)

Alveoli, Alveoli ducts, Respiratory Bronchioles (Respiratory Zone)

Function

True respiration begins in the smallest bronchioles (respiratory bronchioles). They branch into alveolar ducts and finally into the tiny alveoli. They look like tiny bunches of grapes. This is where gas exchange happens. The capillaries carrying oxygen lie right up against the alveoli and form the respiratory membrane. Across this membrane the oxygen is traded for carbon dioxide. Respiration has occurred.

 

TESTING

Assess Respiratory System comprehension with the Mutiple Choice Test.

Study the Respiratory System Diagram, then test your knowledge with the Respiratory System Labeling.

Organs of the Respiratory System

Use Teacher Login to show answer keys or other teacher-only items.

Citing Research References

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When citing a WEBSITE the general format is as follows.
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Here is an example of citing this page:

Amsel, Sheri. "Alveoli, Alveoli ducts, Respiratory Bronchioles (Respiratory Zone) " Exploring Nature Educational Resource ©2005-2020. October 24, 2020
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