Nervous system and nerve cells, Biology

Assignment Help:

Nervous System and Nerve Cells

Living matter has the intrinsic capability to respond to changes in environmental (physical, biological and chemical) factors. Single cell organisms such as Amoeba, Paramecium also respond to the environment, interact with it and generate appropriate responses with the advent of multicellularity and increase in the size of animals, arose the need for coordination and rapid conduction of information within the organism.

To fulfil this need, some of the cells in the multicellular organisms became more and more specialized, acquired particular ability for receiving environmental information, for conducting it through the organism and finally for generating appropriate responses. And thus a cell type, the nerve cell or neuron came into being. The neuron itself underwent further morphological and physiological specialisation resulting in the evolution of a great variety of neurons (nerve cells) differing markedly in size and morphological appearances according to the specialized job they were required to perform. These cells became organised in what is known as the nervous system.


Related Discussions:- Nervous system and nerve cells

Define the dietary and lifestyle modifications - obesity, Define the Dietar...

Define the Dietary and Lifestyle Modifications - Obesity? The management of obesity basically comprises the following three- pronged approach. a) Dietary modifications b)

Illustrate artificial active immunization, Q. What are artificial active im...

Q. What are artificial active immunization and natural active immunization? Natural active immunization is that in which a previous natural infection induces the primary immune

Cytosol of prokaryotes, The  citric  acid  cycle  functions  in  the  mitoc...

The  citric  acid  cycle  functions  in  the  mitochondria   of  eukaryotes  and  in  the cytosol of prokaryotes. The Succinate dehydrogenase, the only membrane-bound enzyme   in t

Help, about how humans survive and reproduce currently. In your journal, wr...

about how humans survive and reproduce currently. In your journal, write down three adaptations that help humans have differential survivability, and three adaptations that help hu

Aims and applications of epidemiology, Problem 1: Show the aims and app...

Problem 1: Show the aims and applications of Epidemiology. Definition of Epidemiology. List aims of Epidemiology List applicationsof Epidemiology Problem 2

Explain about diabetes mellitus, Explain about Diabetes mellitus Diabe...

Explain about Diabetes mellitus Diabetes mellitus (DM) has relation with all the systems of our body. With some systems it has direct relationship, while with others it has in

What are the classification of diabetes, Q. What are the Classification of ...

Q. What are the Classification of Diabetes? Several forms of diabetes have been identified as a result of research and survey conducted world-wide. These forms of diabetes incl

Define multiple tube fermentation test, Define Most Probable Number Test (M...

Define Most Probable Number Test (Multiple Tube Fermentation Test)? Presence of coliforms in the water sample can be detected by performing multiple tube fermentation test whic

Female drosophila with singed bristles, A female Drosophila with singed bri...

A female Drosophila with singed bristles is crossed to a male with sepia (dark brown) eyes. In the F1, all females are wild-type and all males have singed bristles. F1 males and fe

Illustrate pathology, Q. Illustrate Pathology? Following rheumatic feve...

Q. Illustrate Pathology? Following rheumatic fever, over next few years to decades, the typical funnel shaped mitral valve assumes a fish mouth appearance. During rheumatic fev

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd