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language
eng
Author
Domoto, Tokio
Daniel, E.E
Oki, Mitsuru
Tanaka, Osamu
Description
Electrical activities and cell-to-cell junctions in dog and frog stomach muscle were investigated.In frog stomach no repetitive spike discharges (burst spikes) superimposed on a slow wave, similar to those recorded from dog stomach, could be recorded using microelectrodes, pressure electrodes and suction electrodes.In general, nexuses are absent in the longitudinal muscle layer of dog stomach and everywhere in frog stomach. Close apposition contacts are common in both muscle layers of canine and frog stomach. Thus, present findings indicate that electrical coupling in the frog stomach can occur without nexuses, and the distribution of the close apposition contacts can provide the primary structural basis for coupling of electrical control activity. Rapid electrically coordinated contraction is unlikely in the fundus of dog stomach and at any regions in frog stomach. Nexuses may be required to provide an invariable pathway of current flow and the mechanical connection between cells.
Subject
electrical coupling
structure
stomach muscle
Journal Title
Shimane journal of medical science
Volume
2
Issue
2
Start Page
91
End Page
102
ISSN
03865959
Published Date
1978-12-01
NCID
AA00841586
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Faculty of Medicine
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