Record Display for the EPA National Library Catalog


Main Title Comparative Anatomy of Mammalian Respiratory Tracts: The Nasopharyngeal Region and the Tracheobronchial Region.
Author Patra, A. L. ;
CORP Author Northrop Services, Inc./Environmental Sciences, Research Triangle Park, NC.;Health Effects Research Lab., Research Triangle Park, NC.
Publisher c1986
Year Published 1986
Report Number EPA-68-02-4032; EPA/600/J-86/546;
Stock Number PB91-109124
Additional Subjects Respiratory system ; Trachea ; Bronchi ; Mammals ; Casting ; Reprints ; Comparative anatomy ; Nasopharynx ; Species specificity
Library Call Number Additional Info Location Last
NTIS  PB91-109124 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 14p
Silicone rubber casts of the respiratory tract were used in morphological studies of the human, baboon, rhesus monkey, dog, rabbit, guinea pig, rat, hamster, and mouse. In the studies, the trachea of the specimen was opened by tracheotomy, and silicone rubber (734 RTV) was introduced through the trachea to form nasopharyngeal and tracheobronchial casts. Measurements were made on the nasal structures, and the lungs were observed for species variation in branching pattern and number of lobes per lung. While species differences in respiratory tract anatomy are known to exist, the study provides a focus for toxicologists when extrapolating toxicological results from one species to another.