Home General Physiology and Biophysics 2010 General Physiology and Biophysics Vol.29, No.1, p.129–133, 2010

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Quarterly, 80 pp. per issue
Founded: 1982
ISSN  1338-4325 (online)

Published in English

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General Physiology and Biophysics Vol.29, No.1, p.129–133, 2010

Title: Analysis of rat papillary muscle transverse deformation by laser diffraction
Author: Adolfo Virgen-Ortiz, Alejandro Apolinar-Iribe, Martín E. Ríos-Martínez, José L. Marín, Jesús Muñiz

Abstract: We use laser diffraction in the analysis of the transversal deformation that the papillary muscle of the female and male Wistar rat may undergo when is subjected to different tension (tension range, 0–30 mN) in the longitudinal plane. Papillary muscles from the right ventricle were illuminated at normal incidence with a He-Ne laser lasing at 594 nm at room temperature. The far-field diffraction pattern projected to a screen was recorded with a digital camera for its analysis. The analysis of the stress-strain curves from the two experimental groups shows that the papillary muscles from male rats exhibit a higher stiffness in the transversal axis compared to the female rats.

Keywords: Cardiac papillary muscle — Transverse deformation — Laser diffraction
Year: 2010, Volume: 29, Issue: 2 Page From: 129, Page To: 133
doi:10.4149/gpb_2010_02_129


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