Affiliation:
1. University of Birmingham
Abstract
(1) The normal structure of the hepato-pancreas of Ligia is described. There are two different and distinct kinds of cells present in the gland tubules; the one of large size and columnar shape and containing fatty droplets, the other smaller, oval or wedge-shaped, less numerous, but filled with granules of mucigen.
(2) In all cases the cells are enclosed in a thin envelope of chitin and therefore do not form a syncytium.
(3) The changes produced in these cells by (a) fatigue, electrically induced, (q) pilocarpine, (c) strychnine, are described. Pilocarpine acts powerfully on the columnar cells, leaving the oval ones unaffected.
Publisher
The Company of Biologists
Subject
Insect Science,Molecular Biology,Animal Science and Zoology,Aquatic Science,Physiology,Ecology, Evolution, Behavior and Systematics
Cited by
8 articles.
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