ASPECTS STRUCTURAUX DES PAROIS DU SINUS CORONAIRE HUMAIN
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The authors studied the structure and the disposition of the connective-muscular tissue components of the superficial (epicardiac) and deep (myocardiac) walls of the coronary sinus. The connections of the coronary sinus walls to epicardium and myocardium, through septums fibrous of the perimisium, may play the role of increasing the resistance of the walls during the elevation of the venous pression. The presence of voluminous fascicles of circular and oblique cardiac muscle fibers coming from myocardium walls of the atria, that completely turning around the superficial wall of the sinus, to our knowledge, it would act as a functional sphincteric dispositive, able to maintain impulse of blood-stream and even to prevent blood reflux during atrial presystole. The authors, also, presented the structure and the function of the coronary sinus and Vieussens valves.
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French
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Anatomischer Anzeiger, v. 171, n. 3, p. 165-178, 1990.
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