The role of mono- and divalent cations in the spike generation of myocardial cells in the snail, Helix Pomatia L.

T. Kiss, Katalin S.-Rózsa

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

1. 1. In experiments with microelectrodes it was found that the resting potential (RP) of the heart muscle cells of Helix pomatia L. is mainly K dependent, but in some degree Ca ions also take part in the maintenance of RP. 2. 2. The action potential generation ceases both in Na- and Ca-free solutions. 3. 3. Under the influence of Li ions and an excess of Ca the speed of the rising phase and the amplitude of the AP increase. 4. 4. TTX (10-3M), ouabain (10-3M) and MnCl2 (4 mM) eliminate the generation of action potentials in snail heart muscle cells. 5. 5. It is stated that generation of the action potentials of heart muscle cells in H. pomatia depends on both Na and Ca ions.

Original languageEnglish
Pages (from-to)173-181
Number of pages9
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Volume44
Issue number1
DOIs
Publication statusPublished - Jan 1 1973

Fingerprint

Helix (Snails)
Monovalent Cations
Divalent Cations
Cardiac Myocytes
Action Potentials
Muscle
Cells
Ions
Membrane Potentials
Microelectrodes
Snails
Ouabain
Maintenance
Experiments

Keywords

  • calcium action potentials
  • Helix heart
  • Helix pomatia
  • MnCl
  • ouabain
  • sodium action potentials
  • tetrodotoxin

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Biochemistry

Cite this

The role of mono- and divalent cations in the spike generation of myocardial cells in the snail, Helix Pomatia L. / Kiss, T.; S.-Rózsa, Katalin.

In: Comparative Biochemistry and Physiology -- Part A: Physiology, Vol. 44, No. 1, 01.01.1973, p. 173-181.

Research output: Contribution to journalArticle

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