IN SUMMARY Nodules of Ranvier disrupt the myelin sheath at regular intervals. The action potential jumps from one node to another, so that the transmission of nerve impulses is faster. Myelin performs, among other functions, a work of support and protection of the axons. In demyelinating diseases, Ranvier’s nodules are the first affected. Various proteins are found at the contacts between glia cells and axons, which act as molecular scaffolds. The extraordinary information processing capacity of nervous tissue structure organization rests, above all, on the properties of its main cells, the neurons. It is their responsibility to produce and conduct action potentials, that is, electrical signals. Neurons have numerous extensions: dendrites, which receive information from other neurons through synapses, and an axon, which transmits this information to other cells. The axons can reach great length. The unforeseen pathways of learning.
Does it intervene in the formation of thought?
Glia cells abound in the brain. In the case of the human it has ten glial cells for each neuron. There are three varieties of glia in the central nervous system: microglia, And astrocytes. Each type performs specific and important functions for neurons. Apparently, astrocytes even coordinate the activity of neurons in different areas of the brain. They have been found to be involved in the shaking of a Podiatrists business email list variant of epilepsy: sclerosis of the horn of Ammon. Neurons are not the majority components of our brain; glia cells tenfold in number. According to traditional doctrine, glial cells perform functions of support and assistance to neurons. During development, they provide the guiding framework for migratory nerve cells and expansive cell processes, And when the nervous system has reached maturity, They electrically isolate neurons from the environment.
Adaptation to cellular stress
The cells of organisms undergo constant changes in their environment. When they endanger their lives, they create a stressful situation. To survive such adversity, cells use a set of strategies known as adaptive responses to cellular stress. One of them, perhaps the most important, is to regulate the expression of certain genes that protect cells by modifying division, morphogenesis, metabolism, and other Sale Lead physiological aspects. In addition, they fulfill a capital mission in the immune defenses of the brain and regulate the neuronal ionic balance. Recent research forces us to modify the picture. It is more than likely that the The action potential is generally generated in the cell soma of a neuron. It almost always single, but from which ramifications can arise. Sometimes the endings of an axon are very close to the cell soma on which it depend other neurons.
