Opis: Journal of Anatomy and Physiology, Vol. 48 (Classic Reprint) - Turner William

Excerpt from Journal of Anatomy and Physiology, Vol. 48

Since their discovery, the sino-auricular (Keith-Flack, 1907) node and the auriculo-ventricular bundle (Kent and His, 1892) have been extensively described by many writers.

Histological research has, until recently, concerned itself chiefly with the nature and distribution of the primitive muscle, which is the most noticeable feature of those structures.

In 1906, Tawara, whose description of the muscular element of the auriculo-venticular node and bundle is most exhaustive, stated that nerve fibres accompany the bundle in the sheep. In the bundle of the sheep and calf the nervous tissue is very abundant, and cells and large strands of nerve fibres form a striking feature in sections stained by Van Gieson's method, but Wilson was the first (1909) to make a study of the nervous element of the bundle by special nerve stains. He used the intra-vitam methylene blue method, and worked chiefly with the calf, sheep, and pig. He states that he was less successful with human hearts and with those of carnivora. He describes in the calf's heart numerous nerve cells and ganglia, large nerve strands, and a very rich plexus of exceedingly fine fibrils, breaking up and closely surrounding the muscle fibres and groups of muscle fibres, but without any definite end organs in relation to the muscle cells. Lydia de Witt stated that in the calf and sheep nerve cells and fibres were numerous, and that the fibres could be followed to the finer ramifications of the bundle. She does not give a detailed description of the nerve element: her paper deals chiefly with the course and final distribution of the bundle.

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Szczegóły: Journal of Anatomy and Physiology, Vol. 48 (Classic Reprint) - Turner William

Nazwa: Journal of Anatomy and Physiology, Vol. 48 (Classic Reprint)
Autor: Turner William
Wydawnictwo: FB &c Ltd
Kod paskowy: 9781330553725
Języki: angielski
Ilość stron: 486
Format: 15.2x22.9cm
Oprawa: Miękka

Recenzje: Journal of Anatomy and Physiology, Vol. 48 (Classic Reprint) - Turner William