Fine Struture of the Prawn Heart Muscle
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چکیده
منابع مشابه
The Fine Structure and Electrophysiology of Heart Muscle Cell Injury
Injured frog heart cells electrically uncouple from their uninjured neighbors within 30 min after injury. This uncoupling process can be shown by the disappearance of an injury potential measured between such injured and uninjured cells. In the present study, the time course of the decline of injury potentials, and thus of electrical uncoupling, in bullfrog atrial trabeculae was determined. Tis...
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Activity of myofibrillar adenosinetriphosphatase was demonstrated histochemically at a fine structural level in isolated, unfixed or hydroxyadipaldehyde-fixed cardiac myofibrils in the rat, using a lead precipitation technique and either Ca(++) or Mg(++) as activating ion. Activity in relaxed myofibrils was found in the A band, but not the H, I, or Z bands. Deposits of final product frequently ...
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Fibrillation is a hazardous phenomenon in cardiac muscle and so any new work towards the understanding of this process is important to the development of new methods in diagnosis and therapy. In this work we have used surface and intra cardiac ECGs of patients with chronic atrial fibrillation (AF). By means of the blind source separation (BSS) algorithm, which is a well-known method in signal p...
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In view of reports that the nerve fibers of the sea prawn conduct impulses more rapidly than other invertebrate nerves and look like myelinated vertebrate nerves in the light microscope, prawn nerve fibers were studied with the electron microscope. Their sheaths are found to have a consistent and unique structure that is unlike vertebrate myelin in four respects: (1) The sheath is composed of 1...
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Proteins are polypeptide chains obtained by translation from strands of messenger RNA. The functional properties of proteins depend on their three-dimensional structures. The three-dimensional structure arises because particular sequences of amino acids in polypeptide chains fold to generate, from linear chains, compact domains with specific three-dimensional structures(Figure 19.1). Totally th...
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ژورنال
عنوان ژورنال: The Tohoku Journal of Experimental Medicine
سال: 1973
ISSN: 0040-8727,1349-3329
DOI: 10.1620/tjem.111.101