Wilhelm His Sr. (9 July 1831 – 1 May 1904) was a Swiss anatomist and professor who invented the microtome. By treating animal tissue with acids and salts to harden it and then slicing it very thinly with the microtome, scientists were able to further study the organization and function of tissues and cells under a microscope.
1857, at the age of 26, he became professor of anatomy and physiology at the University of Basel. In 1872 he took up a call from University of Leipzig to become professor there.
His introduced the word endothelium, distinguishing these internal membranes, which had formerly been grouped with epithelia, and developing an understanding of their relationship to the germ layers in development.[1]
His's drawing comparing a chick embryo to a slit rubber tube, 1874. He argued that the shapes of structures are dictated mechanically when one part grows more than another, in opposition to Haeckel.
His specifically rejected all forms of soft inheritance (Lamarckism). The passage runs [original in German]: "Until it has been refuted, I stand by the statement that characters can not be inherited that were acquired during the lifetime of the individual". The passage comes from his 1874 work Unsere Körperform und das physiologische Problem ihrer Entstehung (The Form of Our Body and the Physiological Problem of Its Development; Leipzig: Vogel). The historical significance is that it was not until 1883 that August Weismann made a similar declaration.
His is also remembered for disputing the veracity of Ernst Haeckel's drawings of embryo, which had been used as justification for the development of recapitulation theory and for his identification of a germinative zone within the developing vertebrate metencephalon that he later termed the rhombic lip.[2]
Between 1879 and 1886 he made groundbreaking studies of the development of the nervous system in a collection of 12 human embryos from 2 to 8.5 weeks development, for example observing the progressive outgrowth of nerves into the fingers.[3]
By 1895, Wilhem His, Professor of Anatomy at the University of Leipzig, had published a three-dimensional reconstruction of Johann Sebastian Bach's face from the skull based on his precise measurements of facial tissue depths of cadaver heads. To begin with, His collected tissue depth data by using a thin needle bearing a small rubber piece that would ride upward on the needle as it was pushed into the tissue of cadavers. The needle was placed at right angles to the bone and pressed into the tissue until its point touched the bone. The displacement of the rubber was measured and recorded for 15 specific locations on 24 male and four female suicide victims along with nine men who died of wasting illnesses.[4]
Wilhelm His Sr. was the father of the physician and cardiologist Wilhelm His Jr.
^William C. Aird M.D. "Endothelial Biomedicine" (PDF). Cambridge University Press.
^Ray RS, Dymecki SM (December 2009). "Rautenlippe Redux -- toward a unified view of the precerebellar rhombic lip". Current Opinion in Cell Biology. 21 (6): 741–7. doi:10.1016/j.ceb.2009.10.003. PMC3729404. PMID 19883998.
^Louis ED, Stapf C (November 2001). "Unraveling the neuron jungle: the 1879-1886 publications by Wilhelm His on the embryological development of the human brain". Archives of Neurology. 58 (11): 1932–5. doi:10.1001/archneur.58.11.1932. PMID 11709006.
^Krogman, Wilton M., The Human Skeleton in Forensic Medicine, Springfield Illinois: Charles C. Thomas, 1962 (p358-359)
Referencesedit
Wendler D, Rother P (December 1982). "[Wilhelm His Senior--the life and work of the important Leipzig morphologist]". Zeitschrift für die gesamte innere Medizin und ihre Grenzgebiete (in German). 37 (23): 810–3. PMID 6761987.
Peipert JF, Roberts CS (April 1986). "Wilhelm His Sr.'s finding of Johann Sebastian Bach". The American Journal of Cardiology. 57 (11): 1002. doi:10.1016/0002-9149(86)90749-6. PMID 3515894.
Chapnitskaia RA, Detlaf TA (1993). "[Wilhelm His (the elder)]". Ontogenez (in Russian). 24 (3): 103–10. PMID 8355958.
"[Wilhelm His, the anatomist: 1831-1904]". Orvosi Hetilap (in Hungarian). 122 (40): 2485–8. October 1981. PMID 7033877.
"Wilhelm His Sr. (1831–1904) — embryologist and anatomist". JAMA. 187: 58. January 1964. doi:10.1001/jama.1964.03060140064022. PMID 14071882.
The Embryograph of Wilhelm His, Hartnack's Drawing Apparatus
January 01, 1970
wilhelm, july, 1831, 1904, swiss, anatomist, professor, invented, microtome, treating, animal, tissue, with, acids, salts, harden, then, slicing, very, thinly, with, microtome, scientists, were, able, further, study, organization, function, tissues, cells, und. Wilhelm His Sr 9 July 1831 1 May 1904 was a Swiss anatomist and professor who invented the microtome By treating animal tissue with acids and salts to harden it and then slicing it very thinly with the microtome scientists were able to further study the organization and function of tissues and cells under a microscope Wilhelm His Sr c 1900Born 1831 07 09 9 July 1831Basel SwitzerlandDied1 May 1904 1904 05 01 aged 72 Leipzig GermanyNationalitySwissKnown forMicrotome contribution to neuron doctrineCareer editHis came from a patrician family and studied medicine in Basel Berlin under Johannes Peter Muller and Robert Remak Wurzburg under Rudolf Virchow and Albert von Kolliker Bern Vienna and Paris He received a doctorate in 1854 and in 1856 received the habilitation higher doctorate in Basel 1857 at the age of 26 he became professor of anatomy and physiology at the University of Basel In 1872 he took up a call from University of Leipzig to become professor there His introduced the word endothelium distinguishing these internal membranes which had formerly been grouped with epithelia and developing an understanding of their relationship to the germ layers in development 1 nbsp His s drawing comparing a chick embryo to a slit rubber tube 1874 He argued that the shapes of structures are dictated mechanically when one part grows more than another in opposition to Haeckel His specifically rejected all forms of soft inheritance Lamarckism The passage runs original in German Until it has been refuted I stand by the statement that characters can not be inherited that were acquired during the lifetime of the individual The passage comes from his 1874 work Unsere Korperform und das physiologische Problem ihrer Entstehung The Form of Our Body and the Physiological Problem of Its Development Leipzig Vogel The historical significance is that it was not until 1883 that August Weismann made a similar declaration His is also remembered for disputing the veracity of Ernst Haeckel s drawings of embryo which had been used as justification for the development of recapitulation theory and for his identification of a germinative zone within the developing vertebrate metencephalon that he later termed the rhombic lip 2 Between 1879 and 1886 he made groundbreaking studies of the development of the nervous system in a collection of 12 human embryos from 2 to 8 5 weeks development for example observing the progressive outgrowth of nerves into the fingers 3 His was elected a member of the Royal Swedish Academy of Sciences in 1892 By 1895 Wilhem His Professor of Anatomy at the University of Leipzig had published a three dimensional reconstruction of Johann Sebastian Bach s face from the skull based on his precise measurements of facial tissue depths of cadaver heads To begin with His collected tissue depth data by using a thin needle bearing a small rubber piece that would ride upward on the needle as it was pushed into the tissue of cadavers The needle was placed at right angles to the bone and pressed into the tissue until its point touched the bone The displacement of the rubber was measured and recorded for 15 specific locations on 24 male and four female suicide victims along with nine men who died of wasting illnesses 4 Wilhelm His Sr was the father of the physician and cardiologist Wilhelm His Jr See also editWilhelm His Jr Embryology Forensic facial reconstructionNotes edit William C Aird M D Endothelial Biomedicine PDF Cambridge University Press Ray RS Dymecki SM December 2009 Rautenlippe Redux toward a unified view of the precerebellar rhombic lip Current Opinion in Cell Biology 21 6 741 7 doi 10 1016 j ceb 2009 10 003 PMC 3729404 PMID 19883998 Louis ED Stapf C November 2001 Unraveling the neuron jungle the 1879 1886 publications by Wilhelm His on the embryological development of the human brain Archives of Neurology 58 11 1932 5 doi 10 1001 archneur 58 11 1932 PMID 11709006 Krogman Wilton M The Human Skeleton in Forensic Medicine Springfield Illinois Charles C Thomas 1962 p358 359 References editWendler D Rother P December 1982 Wilhelm His Senior the life and work of the important Leipzig morphologist Zeitschrift fur die gesamte innere Medizin und ihre Grenzgebiete in German 37 23 810 3 PMID 6761987 Peipert JF Roberts CS April 1986 Wilhelm His Sr s finding of Johann Sebastian Bach The American Journal of Cardiology 57 11 1002 doi 10 1016 0002 9149 86 90749 6 PMID 3515894 Chapnitskaia RA Detlaf TA 1993 Wilhelm His the elder Ontogenez in Russian 24 3 103 10 PMID 8355958 Wilhelm His the anatomist 1831 1904 Orvosi Hetilap in Hungarian 122 40 2485 8 October 1981 PMID 7033877 Wilhelm His Sr 1831 1904 embryologist and anatomist JAMA 187 58 January 1964 doi 10 1001 jama 1964 03060140064022 PMID 14071882 External links editdoctor 2606 at Who Named It The Embryograph of Wilhelm His Hartnack s Drawing Apparatus Retrieved from https en wikipedia org w index php title Wilhelm His Sr amp oldid 1133102357, wikipedia, wiki, book, books, library,
