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Before Ramón y Cajal's work, Norwegian scientist Fridtjof Nansen had established the contiguous nature of nerve cells in his study of certain marine life, which Ramón y Cajal failed to cite. [30] Ramón y Cajal was an International Member of both the United States National Academy of Sciences and the American Philosophical Society. [31] [32]
Drawing by Camillo Golgi of a hippocampus stained with the silver nitrate method Drawing of a Purkinje cell in the cerebellum cortex done by Santiago Ramón y Cajal, clearly demonstrating the power of Golgi's staining method to reveal fine detail. Golgi's method is a silver staining technique that is used to visualize nervous tissue under light ...
Original - Santiago Ramón y Cajal was a Spanish histologist, neuroscientist, and Nobel laureate Reason High Ev as lead image also Featured on Commons Articles in which this image appears Santiago Ramón y Cajal, El Español de la Historia,Long-term potentiation, List of Nobel laureates in Physiology or Medicine,List of Spaniards
Their existence was originally proposed by Spanish histologist Santiago Ramón y Cajal based upon stationary images he observed under the microscope. He first described the growth cone based on fixed cells as "a concentration of protoplasm of conical form, endowed with amoeboid movements" (Cajal, 1890). [ 2 ]
The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain".This photographic reproduction is therefore also considered to be in the public domain in the United States.
Ramón y Cajal's drawing of the cells of the chick cerebellum, from Estructura de los centros nerviosos de las aves, Madrid, 1905. The neuron doctrine is the concept that the nervous system is made up of discrete individual cells, a discovery due to decisive neuro-anatomical work of Santiago Ramón y Cajal and later presented by, among others, H. Waldeyer-Hartz. [1]
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They were first reported by Santiago Ramón y Cajal in 1903, who called them nucleolar accessory bodies due to their association with the nucleoli in neuronal cells. [1] They were rediscovered with the use of the electron microscope (EM) and named coiled bodies , according to their appearance as coiled threads on EM images, and later renamed ...