File:Intestine histology 002.jpg

Jejunum

(Stain - Haematoxylin Eosin) Labeled Image

Histology section of Jejunum

The small intestine is divided into:

1. Duodenum (25-30 cm)
2. Jejunum (about first two-fifths of the rest)
3. Ileum.

• The three segments merge imperceptibly and have the same basic histological organization.
• Accumulations of lymphocytes are common in the mucosa of the GIT, and they occur frequently in the small intestine.
• Lymphocytes can form very large aggregates in particular in the ileum where they may be covered by a specialised form of epithelium which facilitates their function in the immune-defence of the body against possible pathogens in the lumen of the intestine.
• These specialised parts of the small intestine are called Peyer's patches,

Intestine Histology Links: Duodenum overview | Duodenum villi and crypts | Duodenum | Jejunum overview | Jejunum villus | Jejunum labeled | Jejunum unlabeled | Gastrointestinal Tract Histology | Intestine Development

Links: Histology | Histology Stains | Blue Histology images copyright Lutz Slomianka 1998-2009. The literary and artistic works on the original Blue Histology website may be reproduced, adapted, published and distributed for non-commercial purposes. See also the page Histology Stains.

Cite this page: Hill, M.A. (2024, April 23) Embryology Intestine histology 002.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Intestine_histology_002.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G