neuron doctrine

neuron doctrine
neuron doctrine n a theory in anatomy and physiology: the nervous system is composed of nerve cells each of which is a structural unit in contact with other units but not in continuity, a genetic unit derived from a single embryonic neuroblast, a functional unit or unit of conduction with the nervous pathways being chains of such units, and a trophic unit with the nerve processes degenerating when severed from the cell body and being replaced by outgrowths from the cell body called also neuron theory

* * *

the doctrine that the nervous system is entirely cellular, that its cells are distinctive as to morphological type and functional characteristics, and that its cells are not in protoplasmic continuity but are juxtaposed without a significant amount of intervening extracellular substance.

Medical dictionary. 2011.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Neuron doctrine — 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 a descriptive term for the fundamental concept that the nervous system is made up of discrete… …   Wikipedia

  • neuron doctrine — noun or neuron theory : a theory in anatomy and physiology: the nervous system is composed of nerve cells each of which is a structural unit in contact with other units but not in continuity, a genetic unit derived from a single embryonic… …   Useful english dictionary

  • Neuron — This article is about cells in the nervous system. For other uses, see Neuron (disambiguation). Brain cell redirects here. For other uses, see Glial cell. Neuron: Nerve Cell …   Wikipedia

  • neuron theory — noun see neuron doctrine …   Useful english dictionary

  • Cognitive neuroscience — Psychology …   Wikipedia

  • Théorie du neurone — Dessin de la main de Ramón y Cajal de cellules cerebelleuses de poulet, tiré de Estructura de los centros nerviosos de las aves , Madrid, 1905. La théorie du neurone désigne la notion devenue fondamentale que les neurones sont les unités… …   Wikipédia en Français

  • Electrical synapse — An electrical synapse is a mechanical and electrically conductive link between two abutting neuron cells that is formed at a narrow gap between the pre and postsynaptic cells known as a gap junction. At gap junctions, such cells approach within… …   Wikipedia

  • Neuroscience — For the journal, see Neuroscience (journal). Drawing by Santiago Ramón y Cajal (1899) of neurons in the pigeon cerebellum Neuroscience is the scientific study of the nervous system.[1] Traditionally, neuroscience has been se …   Wikipedia

  • Brain — This article is about the brains of all types of animals, including humans. For information specific to the human brain, see Human brain. For other uses, see Brain (disambiguation). A chimpanzee brain The brain is …   Wikipedia

  • Outline of neuroscience — The following outline is provided as an overview of and topical guide to neuroscience: Neuroscience – an interdisciplinary science that studies the nervous system.[1] Contents 1 Nervous system 1.1 Central nervous system …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”