Discrete zones of the electrical connexion of Purkinje terminals with muscle fibres in the canine ventricle

F. F. Bukauskas, M. Ye Sakson, N. I. Kukushkin

Research output: Contribution to journalArticle

Abstract

The authors have recorded the activity of the Purkinje terminals (P) and the adjacent muscle (M) fibres in different portions of the right ventricle of the dog. It is shown that the transmission of excitation from P to the M fibres is observed not over the whole endocardial surface but only at discrete sites-zones of the P-M interaction. The zones have the form of ellipses with axes of 300 × 100 μm and are located relatively far from each other-at a distance of 800 to 2000 μm. The total area of the zones is ~ 5 per cent of the endocardial surface. The P-M delay is less within the zone of connexion of P-M fibres (4 msec) and greater outside it (up to 10 msec).

Original languageEnglish (US)
Pages (from-to)909-915
Number of pages7
JournalBiophysics
Volume21
Issue number5
StatePublished - 1976
Externally publishedYes

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Heart Ventricles
Canidae
Dogs
Muscles

ASJC Scopus subject areas

  • Biophysics
  • Medicine(all)

Cite this

Bukauskas, F. F., Sakson, M. Y., & Kukushkin, N. I. (1976). Discrete zones of the electrical connexion of Purkinje terminals with muscle fibres in the canine ventricle. Biophysics, 21(5), 909-915.

Discrete zones of the electrical connexion of Purkinje terminals with muscle fibres in the canine ventricle. / Bukauskas, F. F.; Sakson, M. Ye; Kukushkin, N. I.

In: Biophysics, Vol. 21, No. 5, 1976, p. 909-915.

Research output: Contribution to journalArticle

Bukauskas, FF, Sakson, MY & Kukushkin, NI 1976, 'Discrete zones of the electrical connexion of Purkinje terminals with muscle fibres in the canine ventricle', Biophysics, vol. 21, no. 5, pp. 909-915.
Bukauskas, F. F. ; Sakson, M. Ye ; Kukushkin, N. I. / Discrete zones of the electrical connexion of Purkinje terminals with muscle fibres in the canine ventricle. In: Biophysics. 1976 ; Vol. 21, No. 5. pp. 909-915.
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