The nerve tissue is a set of cells developed from the ectoderm is a layer cell outermost of an embryo animals, this nerve tissue perceived internal and external stimuli to transform them into nerve impulses is a wave electrical oscillation that crosses the plasma membrane. The modifications of the nervous tissue of the external or internal part of the sensory stimuli such as temperature, pressure, light, sounds, taste, among others, because they are detected, examined and transmitted by nerve cells. In addition, the nervous tissue is the one that is responsible for bringing together motor functions, glands, viscerals and the human mind.
Nervous tissue is made up of two types, neurons and neuroglia.
The neuron are the cells of the nervous system whose function is the electrical excitability of the plasma membrane, which are those that are specialized in capturing stimuli and conducting the electrical oscillation waves that run through all neurons as a result of a change. transient permeability in the plasma membrane, but other cell types are also found, such as muscle fibers that are spindle-shaped and multinucleated cells with the capacity that is capable of contracting and is composed of the muscle tissue of the motor layer that is contraction normal muscle fibers of the skeletal striata that is carried through the motor nerves.
The neuroglia or glia, are the cells of the nervous system that carry out the functions of supporting neurons and an auxiliary function that may intervene in the brain's processing of information from the body. The neuroglia consists mainly of protecting, isolating and feeding neurons.
