Serous demilune
Serous demilune | |
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![]() Section of submandibular gland of kitten. Duct semidiagrammatic. (Demilune labeled at center bottom.) | |
Identifiers | |
TH | H2.00.02.0.03062 |
Anatomical terminology |
Serous demilunes, also known as Crescents of Giannuzzi or Demilunes of Heidenhain, are cellular formations in the shape of a half-moon (hence the name "demilune") on the mixed
Serous demilunes are the
The serous demilune is an artifact from traditional methods of preparing samples. Samples are traditionally preserved and fixed in formaldehyde. When samples were preserved by quick-freezing in liquid nitrogen and then fixed with osmium tetraoxide in acetone, no demilunes were found. Examination showed that the serous cells and mucosal cells were aligned in the acinus. The traditional preparation caused mucous cells to swell during fixation which results in the serous cells being popped out of their alignment. After sectioning the serous cells resembled the common demilune shape, and were so named.[2]
When the gland has this demilunar structure, it has
![](http://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Serous_demilunes_of_submandibular_gland_section.png/220px-Serous_demilunes_of_submandibular_gland_section.png)
See also
External links
- Histology image: 13_05 at the University of Oklahoma Health Sciences Center - "Trachea"
- Nosek, Thomas M. "Section 6/6ch4/s6ch4_4". Essentials of Human Physiology. Archived from the original on 2016-03-24.
- Slide at cytochemistry.net
- MedEd at Loyola Histo/HistoImages/hl9-21.jpg
Notes
- ^ PMID 23209333.
- ISBN 0-7817-5124-1.