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  2. Johann Nathanael Lieberkühn - Wikipedia

    en.wikipedia.org/wiki/Johann_Nathanael_Lieberkühn

    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 ...

  3. Intestinal gland - Wikipedia

    en.wikipedia.org/wiki/Intestinal_gland

    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 ...

  4. Paneth cell - Wikipedia

    en.wikipedia.org/wiki/Paneth_cell

    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.

  5. Crypt (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Crypt_(anatomy)

    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 ...

  6. Lieberkühn reflector - Wikipedia

    en.wikipedia.org/wiki/Lieberkühn_reflector

    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.

  7. Maya Hawke reveals actors may be cast based on their ... - AOL

    www.aol.com/maya-hawke-reveals-actors-may...

    Maya Hawke is pulling back the curtain on the Hollywood casting process.. On the "Happy Sad Confused" podcast, the "Stranger Things" star, 26, revealed how actors' social media followings can be a ...

  8. Columbia University affiliate expels students for class ...

    www.aol.com/news/columbia-university-affiliate...

    Columbia University became the epicenter of nationwide protests last spring, during which students built encampments and denounced Israel's escalating response in its war against Hamas.In one day ...

  9. Lieberkuhn - Wikipedia

    en.wikipedia.org/wiki/Lieberkuhn

    a Lieberkühn reflector, an illumination device for a light microscope popularized by JN Lieberkühn, sometimes called just a Lieberkühn Topics referred to by the same term This disambiguation page lists articles associated with the title Lieberkuhn .