Intraorgan lymphatics with special reference to the pancreas

Pancreatic enzymes have been found in lymph but the pathways by which they enter the lymphatics is unclear. In this study a combined light and electron microscopic technique was utilized along with a morphometric analysis system to investigate the structure and distribution of lymphatic vessels in the head, body and tail portions of the rat pancreas. Serial thick sections of perfused tissue were mounted on slides, with alternate sections left uncovered to be reembedded for electron microscopy. Inter and intralobular vessels, ultrastructurally confirmed as lymphatics by the absence of both a continuous basal lamina and fenestrae, were found associated with blood vessels. Vessels with valves were confirmed as lymphatics. Valves were bicuspid and associated with basal lamina. Lymphatics directly associated with acini or endocrine tissue were rare. Quantitative data such as volume and profile densities of the lymphatics were obtained with the an image analysis system. An analysis was similarly carried out on the endothelial vesicles of the wall and valves of the vessels and on the width of the intercellular junctions. Such information is necessary to understand the cellular transport mechanisms responsible for lymph formation.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Biology

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Navas, Vivian

Contributors dc:contributor

• O'Morchoe, Patricia J.

• Biology, Anatomy
• Biology, General

Statement dc:rights

• Copyright 1990 Navas, Vivian

Language dc:language

eng

Identifier

AAI9021733
(UMI)AAI9021733

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/22724