Abstract
The adult mucous cells of the submucosal glands of the trachea and bronchus produce four varieties of acidic glycoproteins. Only one of these, the heavily sulphated type, is produced in the fetus. The percentage of mucous cells producing sulphated mucin falls, and the percentage producing sialomucin rises to the normal adult levels over the first 2–3 years of life. The predominance of sulphated mucin in the fetus is not one aspect of a general inability to produce sialomucin in fetal life, nor is it the consequence of an inactive resting phase in the mucous cell activity. The significance of these findings is discussed.
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.
