Portland, Maine â For the first time, scientists have figured out how to determine the age of a lobster â by counting its rings, like a tree. Nobody knows how old lobsters can live to be; some people estimate they live to more than 100.
The lamina propria (more correctly lamina propria mucosae) mucosÃ¦ is a thin layer of loose connective, tissue or dense irregular connective, tissue which lies beneath the epithelium and together with the epithelium constitutes the. mucosa
The mucosa has 3 parts: 1  The epithelium is the innermost lining of the esophagus and is normally made up of flat, thin cells called squamous cells. 2  The lamina propria is a thin layer of connective tissue right under the epithelium. 3  The muscularis mucosa is a very thin layer of muscle under the lamina propria.