Classification Edit. The respiratory epithelium lining the upper respiratory airways is classified as ciliated pseudostratified columnar epithelium. This designation is due to the arrangement of the multiple cell types composing the respiratory epithelium.espiratory epithelium. Respiratory epithelium is a type of epithelium found lining the respiratory tract, where it serves to moisten and protect the airways. It also functions as a barrier to potential pathogens and foreign particles, preventing infection and tissue injury by action of the mucociliary escalator.
Twitter is also used by many celebrities and others in the entertainment industry (news magazines, journalists, entertainment news shows, etc...) as a way to personally connect with fans, promote projects, and break news.
A hashtag is a tag used to categorize posts on Twitter (tweets) according to topics. To add a hashtag to a tweet, you just preface the relevant term with the hash symbol (#). That will allow people who follow that topic to find your tweet and perhaps follow you as well.Learn More About IT:The Ultimate Guide to Hashtags.o add a hashtag to a tweet, you just preface the relevant term with the hash symbol (#). That will allow people who follow that topic to find your tweet and perhaps follow you as well. Learn More About IT: The Ultimate Guide to Hashtags.