Heinrich Wilhelm Gottfried von Waldeyer-Hartz

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Heinrich Wilhelm Gottfried von Waldeyer-Hartz
Born(1836-10-06)6 October 1836
Hehlen an der Weser, Duchy of Brunswick, German Confederation
Died23 January 1921(1921-01-23) (aged 84)
Berlin, Germany
Known forconsolidating the neuron theory, Naming the chromosome
Scientific career
FieldsAnatomy, Histology and Pathology
InstitutionsCenter for Anatomy of the Charité 1883–1917

Heinrich Wilhelm Gottfried von Waldeyer-Hartz (6 October 1836 – 23 January 1921) was a German

oropharynx) and Waldeyer's glands (of the eyelids).[4]

Contribution to neuron theory

Waldeyer's name is associated in

van Gehuchten and myself, and he invented the fortunate term neuron."[6]

Cytology and embryology

Waldeyer also studied the basophilic stained filaments which had been found to be the main constituents of chromatin, the material inside the cell nucleus, by his colleague of Kiel, Walther Flemming (1843–1905). Although its significance for genetics and for cell biology was still to be discovered, these filaments were known to be involved in the phenomenon of cell division discovered by Flemming, named mitosis. as well as in meiosis. He coined in 1888 the term "chromosome" to describe them.[1][2]

Among his many other anatomical and embryological studies, Waldeyer became known for his pioneering research on the development of

teeth and hair
, many of the terms he invented are still in use today. He also published the first embryological, anatomical and functional studies about the naso-oro-pharyngeal lymphatic tissue, which received his name.

In 1904, he was elected as a member to the American Philosophical Society.[7]

Bibliography

  • Über Karyokinese und ihre Beziehungen zu den Befruchtungsvorgängen. Archiv für mikroskopische Anatomie und Entwicklungsmechanik, 1888, 32: 1–122. Paper about mitosis and chromosomes.
  • Ueber einige neuere Forschungen im Gebiete der Anatomie des Centralnervensystems. Deutsche medicinische Wochenschrift, Berlin, 1891: 17: 1213–1218, 1244–1246, 1287–1289, 1331–1332, 1350–1356. (About some new researches in the field of anatomy of the central nervous system). His most famous statement and summary of the neuron theory.
  • W. von Waldeyer-Hartz: Lebenserinnerungen. Bonn, 1920; 2nd edition; Bonn, 1921; 3rd edition, 1922. His memoirs.

References and notes

  1. ^
    PMID 29255713
    .
  2. ^
    S2CID 39118426
    .
  3. PMID 3058399
    .
  4. ^ A third structure, the sheath that encircles the terminal ureter, is also occasionally named in his honour; it is then referred to as Waldeyer's sheath.
  5. PMID 31844876
    .
  6. ^ Cajal, S. Ramón y. (1954) Neuron theory or reticular theory: Objective evidence of the anatomical unity of nerve cells.Transl. MU Purkiss and CA Fox. Madrid:Consejo superior de investigaciones científicas.
  7. ^ "APS Member History". search.amphilsoc.org. Retrieved 2021-06-28.

External links

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