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.
Assess Respiratory System comprehension with the Mutiple Choice Test.
Study the Respiratory System Diagram, then test your knowledge with the Respiratory System Labeling.
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 >.
Amsel, Sheri. "Alveoli, Alveoli ducts, Respiratory Bronchioles (Respiratory Zone) " Exploring Nature Educational Resource ©2005-2021. October 18, 2021
< http://exploringnature.org/db/view/Alveoli-Alveoli-ducts-Respiratory-Bronchioles-Respiratory-Zone- >