Movement is a fundamental property of living beings. DNA contains, written in a four-letter alphabet, the information necessary for cells to develop and divide. White blood cells must move through the body to fight pathogens; Before the opening of a wound, Fibroblasts migrate to it to participate in its healing. Cell movement can also have deadly effects; Cancer cells sometimes break off from tumors, Travel to other parts of the body and metastasize to new tumors. Cellular locomotion therefore plays a fundamental role in life and, Over the past decade researchers have learned a great deal about the processes underlying locomotion. We will describe here how the moving animal cell introduces part of its outer membrane into the cell interior and returns it
It is up to myelin to facilitate the impulse conduction process
The DNA molecule also provides the basis for the evolutionary process that has generated the huge variety of living forms that we know. These are surrounded by tightly packed layers that form a special tissue So important is this structure that all nerve fibers are divided into if they lack it, Or , If they have it. RELATED CONTENT. The unforeseen learning paths A sugar derived from glucose promotes myelin repair One of the first news of it is found in an Importers business email list article published in 1854 by the German pathologist Rudolf Virchow, Who named it thus, Using the Greek term which means bone marrow. This reflected the abundance of myelin that he had observed in the internal or medullary part of the brain. In 1878, Louis Antoine Ranvier, A French histologist.
A gene that encodes the protein responsible for the spatial organization
Suggested in his Lectures on Histology of the Nervous myelin was an electrical insulator, Analogous to the protective sheath of transoceanic telegraph cables. In his annotations, Ranvier wrote that the nerves had equidistant formations of equal length: the annular strangulations. He assumed that these formations, known today as nodes of Ranvier, Performed a purely mechanical function to prevent the myelin from sliding under the influence of gravity. Experiments by showed that the nodes of Ranvier were, in fact, The active segments of nerve function. later Sale Lead the surface in what constitutes the so-called cycle. It carries nutrient molecules to the interior of the cell and is essential for the locomotion of the cell. We will highlight two aspects related to locomotion. The cycle provides a mechanism by which the cell can extend forward.
