What do you mean by nervous system, Biology

Assignment Help:

Q. What do you mean by Nervous System?

Structural Organization:  CNS + PNS

Functional Organization:  only concerned with PNS

Sensory (Afferent) ->  CNS

Motor (Efferent)    <-  CNS

Nervous Tissue: 

Two principal tissues:  Neurons and Supporting Cells (Neuroglia)            

  • Neurons: Highly specialized to transmit messages (impulses). Vary greatly in shapes, however share common features. These include Dendrites, Cell Body, Axons, and Axon Terminals
  • Glia: Different types of cells that generally support, insulate, and protect the delicate neurons. Note that glia still divide during adult life (Gliomas/brain tumors). Some of these cells form the myelin layer, others make CSF.

Related Discussions:- What do you mean by nervous system

Conduction system - heart, In this unit, you have learnt that heart is a mu...

In this unit, you have learnt that heart is a muscular organ situated in thorax covering with pericardium and consist of four chambers i.e. right atrium, left atrium, right ventric

Explain endonucleases, Explain Endonucleases Endonucleases  are  nucle...

Explain Endonucleases Endonucleases  are  nucleases present  in  the pancreatic juice like RNAase  andDNAase. These hydrolyze internal phosphodiester bonds which are located m

What is monera, What is monera? One of the 5 main kingdoms contains bac...

What is monera? One of the 5 main kingdoms contains bacteria and blue/green algae. Does NOT have a cell membrane, or in other words, is made of prokaryotic cells. Actually,

Tissue synthesis for wound healing in nutritional care, Explain the Tissue ...

Explain the Tissue Synthesis for Wound Healing in Nutritional Care? Tissue proteins are synthesized only by amino acids brought to the tissues by circulating blood. The necessa

Define effect micronutrients during pregnancy period, Define effect Micronu...

Define effect Micronutrients during pregnancy period? The need for many vitamins and minerals is increased during pregnancy. Since energy intake increases, the requirements for

What is the function of the flagellum of the sperm cell, Q. What is the fun...

Q. What is the function of the flagellum of the sperm cell? How is it formed? The flagellum of the sperm cell is made by the centrioles that migrate to the region posterior to

Why dietary obtainment of iodine important for thyroid, Q. Why is the dieta...

Q. Why is the dietary obtainment of iodine so important for thyroid functioning? The obtainment of iodine from the diet is vital for the thyroid because this chemical element i

Define procedure for testing the presence of urea in milk, Define Procedure...

Define Procedure for Testing the Presence of Urea in Milk? 1. To 0.5 ml of milk add 0.5 ml of  DMAB solution  (prepared by dissolving 0.4 gm of p-dimethyl amino benzaldehyde po

Normal pigmentation, The female I-1 and her mate, male I-2, had four childr...

The female I-1 and her mate, male I-2, had four children, one of whom has albinism. What is the probability that they could have had a total of four children with any other outcome

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