Anatomy Atlases(tm) : A digital library of anatomy information

Home | About | FAQ | Reviews | Search

Anatomy Atlases: Atlas of Microscopic Anatomy: Section 1 - Cells Atlas of Microscopic Anatomy: Section 11 - Respiratory System

Plate 11.227 Lung

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger, Jr., Ph.D.
Peer Review Status: Externally Peer Reviewed

Respiratory bronchioles

Plate 11.227 Lung

Cat, 10% formalin, H. & E., 50 x.


Refer to Figure 11A which can be used in conjunction with this plate in order to follow the structural changes that occur from the respiratory bronchiole to alveolar ducts to alveolar sacs where gaseous exchange takes place.

Respiratory bronchioles: A branch of the terminal bronchiole. Alveoli arise as outpouchings of the bronchiole. Pulmonary arteries and veins are found adjacent to the bronchiole, but only capillaries extend beyond the respiratory bronchiole.

Alveolar ducts: Arise by branching of respiratory bronchioles; walls made up of alveolar sacs and alveoli.

Alveolar sacs: Cluster of alveoli that open into the lumen of the alveolar ducts. Composed of squamous epithelial cells, basement membrane, and capillaries. Site of respiratory exchange.

Visceral pleura: A serous membrane that intimately covers the surface of the lung.

Next Page | Previous Page | Section Top | Title Page

Home | About Us | FAQ | Reviews | Contact Us | Search

Anatomy Atlases is curated by Michael P. D'Alessandro, M.D. and Ronald A. Bergman, Ph.D.

Please send us comments by filling out our Comment Form.

All contents copyright © 1995-2018 the Author(s) and Michael P. D'Alessandro, M.D. All rights reserved.

"Anatomy Atlases", the Anatomy Atlases logo, and "A digital library of anatomy information" are all Trademarks of Michael P. D'Alessandro, M.D.

Anatomy Atlases is funded in whole by Michael P. D'Alessandro, M.D. Advertising is not accepted.

Your personal information remains confidential and is not sold, leased, or given to any third party be they reliable or not.

The information contained in Anatomy Atlases is not a substitute for the medical care and advice of your physician. There may be variations in treatment that your physician may recommend based on individual facts and circumstances.