From Wikipedia, the free encyclopedia. A mucous membrane or mucosa (plural, mucosae or mucosas; Latin tunica mucosa) is a lining of mostly endodermal origin. It consists of an epithelium (a layer, or layers of epithelial cells) and an underlying lamina propria of loose connective tissue.f the lining is torn or broken, mucus is incapable of performing its roles of preventing infection and retaining tissue moisture levels. In the female, the glans clitoridis and the clitoral hood have mucous membranes.
What is the difference between RA(Registration Authority) and CA(Certifying Authority)? RA interacts with the subscribers for providing CA services. The RA is subsumed in the CA, which takes total responsibility for all actions of the RA.
Certification is different from licensing in that it is often voluntary and may be obtained through a respected nongovernmental agency. The word voluntary can be a bit of a misnomer, however. Certification is part of establishing your credibility within the genetics field and is often required by employers.