QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by MCFARLANE, I. D. Search for Related Content PubMed PubMed Citation Articles by MCFARLANE, I. D. Social Bookmarking                         What's this?

Journal of Experimental Biology 51,377-385 (1969)
Published by Company of Biologists 1969

Two Slow Conduction Systems in the Sea Anemone Calliactis Parasitica

I. D. MCFARLANE ¹

¹ Department of Zoology, University of Bristol, Bristol 8

1. Suction electrodes record electrical activity associated with three conduction systems in the sea anemone Calliactis parasitica. The two slow systems (SS1 and SS2) are previously undescribed. The third system is the through-conduction system.

2. Evidence is given that the SS1 and SS2 are located in the ectoderm and endoderm respectively. The conductile elements have not been identified.

3. The conduction velocity of the SS1 is 4.4-14.6 cm./sec. at 11° C. and is highest in the oral disk. The SS2 velocity is 3.0-5.3 cm./sec.

4. Both slow systems show a marked increase in response delay on repetitive stimulation and fail at stimulation frequencies higher than one shock/3 sec.

CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This article has been cited by other articles:

				R. Josephson THE NEURAL CONTROL OF BEHAVIOR IN SEA ANEMONES J. Exp. Biol., June 15, 2004; 207(14): 2371 - 2372. [Full Text] [PDF]

				D. Mangum Sea anemone neuromuscular responses in anaerobic conditions Science, June 6, 1980; 208(4448): 1177 - 1178. [Abstract] [PDF]

				W. B. Gladfelter Sea Anemone with Zooxanthellae: Simultaneous Contraction and Expansion in Response to Changing Light Intensity Science, August 15, 1975; 189(4202): 570 - 571. [Abstract] [PDF]

				J. Thorpe, G. Shelton, and M. Laverack Colonial nervous control of lophophore retraction in cheilostome Bryozoa Science, July 4, 1975; 189(4196): 60 - 61. [Abstract] [PDF]