Return to the Respiratory System Index
Alveoli, Alveoli ducts, Respiratory Bronchioles (Respiratory Zone)
The alveoli, alveoli ducts, respiratory bronchioles.
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.
Recommended Books and Products
Everything Kids HUMAN BODY BOOK
Learn about the body's systems: digestive, circulatory, respiratory, skeletal, muscular, nervous, endocrine, reproductive and your protective integument (your skin!) This book breaks down the human body and explains its parts and how it works in language a middle school student can understand -- or anyone who is interested in how our amazing bodies work. Also learn fun facts about the body, important vocabulary, interesting exercises and health tips and even do more than 30 body puzzles. Have fun on this 160-page anatomy adventure!
PDF (Save onto Desktop for Read Aloud in Acrobat) click here
Citing This Reference
CITING RESEARCH REFERENCES
When you research information you must cite the reference. Citing for websites is different from citing from books, magazines and periodicals. The style of citing shown here is from the MLA Style Citations (Modern Language Association).
When citing a WEBSITE the general format is as follows.
Author Last Name, First Name(s). "Title: Subtitle of Part of Web Page, if appropriate." Title: Subtitle: Section of Page if appropriate. Sponsoring/Publishing Agency, If Given. Additional significant descriptive information. Date of Electronic Publication or other Date, such as Last Updated. Day Month Year of access <URL>.
All text on Exploring Nature was written by author, Sheri Amsel
Here is an example of citing this page:
Amsel, Sheri. “Respiratory System.” Alveoli, Alveoli ducts, Respiratory Bronchioles (Respiratory Zone). Exploring Nature Educational Resource. © 2005 - 2014. April 23, 2014. <http://exploringnature.org/db/detail.php?dbID=23&detID=45>