GEYDENGAYN Martin (Heidenhain Martin, 1864 — 1949) — the German anatomist and the histologist, the son of the famous physiologist R. Geydengayn. Got a medical education in 1890 in Breslau's high fur boots (nowadays Wroclaw), the Würzburg and Gray-burga. In 1891 — 1893 improved the knowledge of a comparative anatomy, histology and embryology in Tuebingen un-those. In 1894 — 1910 the prosector of department of a comparative anatomy, histology and embryology Würzburg un-that, since 1911 professor of anatomy Tuebingen un-that.
Scientific research of M. Geydengayn is devoted to a thin structure skeletal and cordial muscles, structure of plasma and kernels (oxychromatin) of a cell. It described microcentrums in the based cells. Developed the methods of coloring of animal fabrics iron hematoxylin and an iso-carmine which entered practice under the name of coloring on Geydengayna. The opponent of the cellular theory R. Virkhova, M. Geydengayn created the doctrine «about divisibility of parts of a body» (sinteziologiya), according to Krom the organism consists from coordinated gistol, the systems of the highest and lowest order functioning as a unit. However he could not explain essence of integrity of an organism and dialectic unity of a part and whole.
Works: Plasma und Zelle, Allgemeine Anatomie der lebendigen Masse, Handb. Anat. d. Men-schen, hrsg. v. K. Bardeleben, Lfg 1 — 2, Bd 8, Jena, 1907 — 1911; Formen und Kraf-te in der lebendigen Natur, Lpz., 1923.
Bibliography: Dietrich A. Heidenhain Martin, Dtsch, med. Wschr., S. 371, 1950; Yolkmann R. Martin Heidenhain und die mikroskopische Technik, Z. Wiss. Mikr., Bd 51, S. 309, 1934—1935.
L. F. Gavrilov.