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The earliest documented use of the term was by Benjamin Martin (1704–1782) in a microscope description from 1776 as "concave speculum or lieberkuhn". [16] For the following 150 years, Lieberkühn reflectors were part of the standard accessories of microscopes.
The Crypts of Lieberkühn (intestinal glands) are named for him; he first described these in detail in De fabrica et actione vollorum intestinorum tenuium hominis, in 1745. Beyond this, Lieberkühn produced optical instruments such as compass microscopes with Lieberkühn reflector , further developing the light microscope , which he had seen ...
Colonic crypts (intestinal glands) within four tissue sections. In panel A, the bar shows 100 μm and allows an estimate of the frequency of crypts in the colonic epithelium. Panel B includes three crypts in cross-section, each with one segment deficient for CCOI expression and at least one crypt, on the right side, undergoing fission into two ...
An Italian nun was arrested Thursday as part of a long investigation that led to the arrests of 25 suspects and the seizure of over 1,800,000 euros.
The gastrointestinal tract is composed of numerous cell types that are important for immune activation and barrier surface defenses. The gastrointestinal epithelium is composed of enterocytes, goblet cells, Paneth cells, enteroendocrine cells, tuft cells, and stem cells.
General Motors said Tuesday it will retreat from the robotaxi business and stop funding its money-losing Cruise autonomous vehicle unit. Instead the Detroit automaker will focus on development of ...
The matchups for all nine of the college football conference championships are set. Five of the nine winners will get automatic berths into the 12-team College Football Playoff.
Crypts are anatomical structures that are narrow but deep invaginations into a larger structure. One common type of anatomical crypt is the Crypts of Lieberkühn. [1] However, it is not the only type: some types of tonsils also have crypts. Because these crypts allow external access to the deep portions of the tonsils, these tonsils are more ...