Axons are myelinated by Schwann cells in the peripheral nervous system. These glial cells envelop the axons to form myelin sheaths. In contrast, the task of myelination is carried out by oligodendrocytes in the central nervous system. Remarkably, a single oligodendrocyte can myelinate as many as...
In this paper we discuss a model from neurobiology, which describes the outgrowth of axons from neurons in the nervous system. The model combines ordinary differential equations, defining the movement of the axons, with parabolic partial differential equations. The parabolic equations model the ...
1.The single process of a nerve cell that under normal conditions conducts nervous impulses away from the cell body and its remaining processes (dendrites). It is a relatively even filamentous process varying in thickness from about 0.25 to more than 10 mcm. In contrast to dendrites, which rar...
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In the central nervous system, myelin sheaths (Fig. 3.8) are elaborated by oligodendrocytes. During brain development, these glial cells send out a few cytoplasmic processes that engage adjacent axons and form myelin around them (Bunge, 1968). Myelin consists of a long sheet of oligodendrocyte pl...
Molecular Biology of Axon–Glia Interactions in the Peripheral Nervous System1 V Taylor,U Suter - 《Progress in Nucleic Acid Research & Molecular Biology》 被引量: 0发表: 1997年 Molecular domains of myelinated axons in the peripheral nervous system Myelinated axons are organized into a series ...
Segmentation of axon and myelin from microscopy images of the nervous system provides useful quantitative information about the tissue microstructure, such as axon density and myelin thickness. This could be used for instance to document cell morphometry across species, or to validate novel non-invasive...
Proteomic analysis using LC-MS/MS identified that the “Nervous system development and function”-related proteins, including axonogenesis, synaptogenesis, and myelination signaling pathways, were reduced in injured cortex of CCL5-KO mice; both pre-treatment and post-treatment with CCL5 augmented thos...
An axon, or nerve fiber, is a long slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body or soma. Axons arein effect the primary transmission lines of the nervous system, and as bundles they help make up nerves. ...
. The length of an axon varies. Certain neurons in the centralnervous systemhave axons that project to one or several structures of the central nervous system that are more or less distant from their cell bodies (Figure 1.4), whereas other neurons have short axons (a few microns in length)...