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  • 1
    Electronic Resource
    Electronic Resource
    Seasonal changes in some ultrastructural indices of the ventricular myocytes ofRana ridibunda (1976)
    Springer
    Bulletin of experimental biology and medicine 81 (1976), S. 909-912 
    Details
    ISSN: 1573-8221
    Keywords: seasonal rhythms ; amphibian myocardium ; ultrastructure ; morphometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Certain ultrastructural characteristics of the ventricular myocardium ofRana ridibunda (lateral contacts, intercalated disks, mitochondria) were studied in the spring and fall by electron microscopy coupled with morphometric analysis. The results point to seasonal differences in the ultrastructure of the cardiomyocytes and the conclusion was confirmed by the results of quantitative analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00803021
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Mechanism of the fast neurogenic component of the respiratory response to muscular work (1976)
    Springer
    Bulletin of experimental biology and medicine 82 (1976), S. 1597-1599 
    Details
    ISSN: 1573-8221
    Keywords: Regulation of respiration ; chemoreceptors ; propioceptors ; respiratory center ; muscular activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The dynamics of the pulmonary ventilation, electrical activity of the intercostal muscles, and composition of the alveolar gas were investigated in 12 healthy men performing measured muscular work and breathing mixtures of different composition. The respiratory response in the initial period of work during inhalation of a hypoxic, hypercapnic gas mixture was greater than when breathing air, but after hyperventilation with oxygen it virtually disappeared. The fast component of the ventilatory response to muscular work is evidently due largely to increased sensitivity of the respiratory center to impulses from chemoreceptors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00790358
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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