Illustrated Encyclopedia of Human Anatomic Variation: Opus II: Cardiovascular System
Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed
The most commonly encountered pattern of bronchial arterial supply, Type 1 (A), occurred in 46.67% of specimens (143 of 300 cases); the pattern is that described as "normal" in standard textbooks. In these specimens, 2 left and 1 right bronchial artery are present. Next in order of frequency is the pattern, type 2 (B), in which a bronchial artery passes to each lung; this schema of bronchial arterial origin occurred in 24.33% of cases (73 of 300). The third major group, type 3 (C), is characterized by bilateral duplication of arteries; it was encountered in 14.33% of cases (43 of 300). These three types comprised 86,33% of the arterial patterns in all cadavers studied (that is, together they represent approximately 7 of 8 specimens). In 7.67% of cases (23 of 300), type 4 (D), the pattern was found to be the reverse of type 1 - with 1 artery to the left lung, and 2 to the right. In type 5 (E), 3 arteries were sent to the left lung, a single vessel to the right; this schema of bronchial supply occurred in 3% of specimens (9 of 300). In type 6 (F), 3 bronchial arteries were present on the left side, 2 on the right. In type 7 (G), (2 in 300),0.67%, the reverse of this pattern was encountered (3 on the right, 2 on the left). In a single specimen, type 8 (H), 0.33% (1 in 300),4 bronchial arteries were present on the left side; in another, type 9 (I), 0.33%, the pattern was the reverse of that representing type 8.
from Cauldwell, Siekert, Lininger and Anson, 1950.
Section Top | Title Page
Please send us comments by filling out our Comment Form.
All contents copyright © 1995-2017 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.