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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 ...
Like the other epithelial cell lineages in the small intestine, Paneth cells originate at the stem cell region near the bottom of the gland. [4] There are on average 5–12 Paneth cells in each small intestinal crypt. [5] Unlike the other epithelial cell types, Paneth cells migrate downward from the stem cell region and settle just adjacent to ...
Delta used its investor day to build support for the company, which reported a profit of $2.6 billion in the first nine months of this year after earning an industry-leading $4.6 billion last year.
Tesla and X CEO Elon Musk spent over a quarter of a billion dollars to help get President-elect Donald Trump back in the White House, according to newly released campaign finance records. The ...
NEW YORK — Lou Carnesecca, the legendary St. John's basketball coach and New York sports icon, has died at age 99. Carnesecca was beloved and turned St. John's basketball into a national ...
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 ...