[The specific gravity of the excitation formation and conduction system of the heart compared to the working myocardium as an indication of differences in structure and composition (author's transl)].
Samples of heart conducting system tissue and samples of ordinary heart muscle (left heart, right heart, and septum interventriculare) were taken from the hearts of 50 prime-conditioned bulls. The specific gravity of the heart conducting system was significantly higher than that of ordinary heart muscle. This is surprising because it cannot be explained by a difference in water content. The question arises whether or not there are differences in the composition of protein and in the content of glycogen.
D000818:Animals; D002417:Cattle; D006321:Heart / Q000033:anatomy & histology; D006329:Heart Conduction System / Q000032:analysis / Q000033:anatomy & histology; D009206:Myocardium / Q000032:analysis; D013046:Specific Gravity
Das spezifische Gewicht der Erregungsbildungs-Erregungsleitungssystems im Vergleich zum Arbeitsmyokard als Hinweis auf Unterschiede in Struktur und Zusammensetzung