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

Show major complications of hypertension, Q. Show Major complications of hy...

Q. Show Major complications of hypertension? High blood pressure is one of the leading causes of kidney failure, also commonly called end-stage renal disease (ESRD).  Major

Explain minerals requirement during thyphoid, Explain Minerals requirement ...

Explain Minerals requirement during thyphoid Minerals:   Loss of electrolytes and water is observed due to diarrhoea. Thus liberalizing on sodium intake  through salty soups,

How could an adult lose billions of cells, How can an adult lose billions o...

How can an adult lose billions of cells from all parts of the body each day and still survive?

What is class polychetae - marine worms, What is Class Polychetae - Marine ...

What is Class Polychetae - Marine Worms? The polychaetes differ from the oligochaetes in several ways. The name itself suggests one of the differences. The prefix "poly" means

Arterial system of mammal, ARTERIAL SYSTEM OF MAMMAL Basic plan from...

ARTERIAL SYSTEM OF MAMMAL Basic plan from origin to distribution is similar in all vertebrates as per the mode of respiration. Main anterior aorta in terrestrial forms ar

Developmental biology, do you have college level developmental biologists a...

do you have college level developmental biologists available

Diversty of living organisms, write down the division of cryptogamae and p...

write down the division of cryptogamae and phanerogamae

What is gestational diabetes, Q. What is Gestational Diabetes? When a p...

Q. What is Gestational Diabetes? When a pregnant woman develops diabetes, it is known as gestational diabetes. It occurs in only 1% of the pregnant women. Pregnant women who ha

Illustrate about human eyes, Eyes We have a pair of eyes. They are held...

Eyes We have a pair of eyes. They are held in socket of the skull by four rectus muscles and two oblique muscles. These muscles control the movements of the eyes. The wall of t

Define about the absorption of iron, Define about the Absorption of Iron? ...

Define about the Absorption of Iron? Before it can be absorbed, iron whether it is in the form of haem or non-haem must be released from the food matrices where it is bond with

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