explain polarised state and deparised state in transmission of nerve impluse
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Answer:
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Polarised state is defined as the resting nerve bcoz there is no regulation of impulse and Na+ is present outside. Then, when any impulse occurs, there is influx of Na+ ions inside and K+ ions outside by the help of ion pump. So the inner side of membrane become positively charged and outerside become -vely charged. and this ia known as Depolarisation
Answer:
We here researched the features of transport of nerve impulse along the nerve fiber using modern theory of molecular biology, in which we first elucidate the properties of structure of the nerve cell and the features of distribution of the charges for the sodium ions and potassium ions in the inner and exterior of the never cell membranes. In practice, their distributions are not uniformity, where the distribution of sodium ions and potassium ions between the inner and exterior of cell-membranes are not same, they are just inverse. Just so, an action electro-potential occurs in the cell-membranes. However, the action electro-potential, in essence, is only a static impulse; it cannot propagate along the nerve organizations. If the nerve organizations are acted by the bio-energy, which could lead to the periodic variation of these sodium ions and potassium ions in the inner and exterior of the never cell membranes can be varied periodically under the action of bio-energy by virtue of the works of sodium pump and potassium pump on the surface of cell membrane, then the nerve impulse can propagate along the nerve fiber cell membranes. Our investigations verify that the bio-energy released from hydrolyses reaction of adenosine phosphate (ATP) molecules in the cells can play the role. This chemical reaction can release the bio-energy of o.42eV, which can be transported along the protein molecules to excite the work of se sodium pump and potassium pump. Thus the propagation of the nerve impulse can be carried out automatically in living systems. This is just the mechanism of propagation of the nerve impulse along the nerve l fiber cell membrane. In this paper we elucidate and research in detain and deeply the mechanism of form of the nerve impulse and its features of propagation.