Johannes Peter Müller
See also: Müller
Johannes Peter Müller is a physologist and German ichtyologist , born the July 14th 1801 with Coblenz and dead the April 28th 1858.
In 1819, it enters to the university of Bonn where it becomes Privatdozent in 1824, extraordinary professor in 1826 and ordinary professor in 1830. In 1833, it goes to the Université Humboldt of Berlin where it succeeds Carl Asmund Rudolphi (1771-1832) with the pulpit of Anatomie and Physiologie, function which it will be worth a great reputation. Müller made of many research in physiology, in particular on the voice and hearing, it also works on the properties of the Lymphe, the Chyle and the Sang.
The publication of the Handbuch DER Physiology of Menschen between 1833 and 1840 mark a big step in the development of physiology. For the first time, knowledge resulting from the Chemistry and Physique supplement the observations obtained by the comparative and human anatomy. The greatest part relates to the operation of the nervous system implied in the directions. Müller develops to with it its famous Loi of specific energies of the nerves, according to which a given nerve is receptive only with one type of feeling (visual, auditive…), and this according to the body to which it is correlated. While at the same time the nerves are all of the same type and than the nerve impulse which is transmitted by them is always of comparable nature, each body sees itself thus associated with a circle limited with feelings while there remains blind with the different one. The corollary of this theory is that the contents of lived perceptive are largely function of the constitution of the cognitive apparatus, and that the feelings are thus not simple reflections of the reality which causes them.
In the field of ichtyology, Müller revises initially work of Vat by correcting its taxinomic errors. One of its more important work is Über den Bau und die Grenzen der Ganoiden in which it fixes clear characteristics at this group of antiquated fish. It is necessary to also quote Systematische Beschriebungen der Plagiostomen .
He also studies the anatomy of the Poisson S and the Invertébré S marine S.
Its teaching has a great influence and it has many scientists and famous physiologists like Hermann von Helmholtz (1821-1894), Emil of Wood-Reymond (1818-1896), Theodor Schwann (1810-1882), Friedrich Gustav Jakob Henle (1809-1885) or Carl Ludwig (1816-1895)
He is prize winner of the Médaille Copley in 1854.
In addition to its Handbuch DER Physiology (1) (2), it is necessary to quote among its publications:
- Zur vergleichenden Physiologie of Gesichtssinns (1826)
- Über die phantastischen Gesichtserscheinungen (1826)
- Bildungsgeschichte der Genitalien (1830)
- Of glandularum secerneniium structured (1830)
- Vergleichende Anatomie der Myxinoiden (1834-1843)
- Systematische Beschreibung der Plagiostomen (1841) written with Friedrich Gustav Jakob Henle (1809-1885)
- System der Asteriden (1842) with Franz Hermann Troschel (1810-1882)
- Horae ichthyologicae (1845-1849) with the same one.
See too
Related articles
- History of ichtyology
- History of physiology
External bonds
- bibliographical Biography and reference to the numerical sources in project VLP of the Institute max Planck of history of sciences