Abstract
The respiratory mucus membrane is continuously bombarded with a variety of noxious substances, including microorganisms, chemicals, gaseous pollutants, dust and others. In order to prevent the penetration of mucosal barrier, the body has devised a number of protective forces. 1'2 The efficiency of these defense mechanisms is documented by the sterility of the lung from the first br6nchial division down to terminal alveolar spaces. This review summarizes the host protective factors as applied to the respiratory system.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
