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 substantia propria (or stroma of cornea) is fibrous, tough, unyielding, and perfectly transparent. At its centre, human corneal stroma is composed of about 200 flattened lamellÃ¦ (layers of collagen fibrils), superimposed one on another. They are each about 1.5-2.5 Î¼m in thickness.