| The blood vascular bed of the human pancreas, with special reference to the insulo-acinar portal system. Scanning electron microscopy of corrosion casts. | |
| | |
MedLine Citation:
|
PMID: 1482603 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Microdissection and scanning electron microscopy of corrosion casts showed the structures of the vascular bed of the human pancreas to consist mainly of the capillary plexuses of the exocrine lobules, extralobular ducts and endocrine islets. A considerable number of the exocrine lobules were found to contain one to four marked endocrine islets larger than 30 microns in diameter. These intralobular islets received one or more arterioles (afferent vessels) and emitted conspicuous insulo-acinar portal vessels which continued into the lobular capillaries, suggesting insular control over the functions of the exocrine acini of the pancreas. Direct drainage of the intralobular islets into the veins was never reproduced. Not excluding the possibility that some lobules might contain smaller, unidentifiable islets, there nonetheless were many lobules which directly received arterioles. These lobules are free of control by an islet. Rarely, an islet was located in the interlobular tissue space or along an extralobular duct. Such an extralobular islet issued no portal vessels, and drained into the interlobular or periductal veins. The surface of this type of islet comprised a thin network of fine capillaries. A possibility was suggested that this cortical network might be homologous with the lobular capillaries. No portal route was observed between the islets and extralobular ducts. Few connections were noted between the capillary plexuses of the lobules and ducts. |
| | |
Authors:
|
T Murakami; T Fujita; T Taguchi; Y Nonaka; K Orita |
Related Documents
:
|
12602783 - Multiple injections of coloured microspheres for islet blood flow measurements in anaes... 920823 - Plasma volume, red cell volume, and thoracic duct lymph flow in hypothermia. 6742513 - Recombination between the s and the h blood group loci in pigs. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Archives of histology and cytology Volume: 55 ISSN: 0914-9465 ISO Abbreviation: Arch. Histol. Cytol. Publication Date: 1992 Oct |
Date Detail:
|
Created Date: 1993-02-17 Completed Date: 1993-02-17 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 8806082 Medline TA: Arch Histol Cytol Country: JAPAN |
Other Details:
|
Languages: eng Pagination: 381-95 Citation Subset: IM |
Affiliation:
|
Department of Anatomy, Okayama University School of Medicine, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Aged Blood Vessels / ultrastructure Corrosion Casting Female Humans Islets of Langerhans / blood supply* Male Microscopy, Electron, Scanning Middle Aged Pancreas / blood supply* Portal System / ultrastructure* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Ultrastructural localization of Ca(++)-ATPases in Meissner's corpuscle of the Mongolian gerbil.
Next Document: Incomplete vascular casting for a scanning electron microscope study of the microcirculatory pattern...