Nervous system, Biology

Nervous System

  1. It is controling system of body. Ectodermal in origin.
  2. This system is made up of nervous tissue.
  3. Nervous tissue is made up of neuron & neuroglial cells.
  4. Neuron is originated from neuroblast, that appears at neurula stage in the formation of neural canal.
  5. In neuron centrosome is absent so there is no power of regeneration.
  6. Neuroglial cells are helpful in repairing.
  7. Nervous system is studied in three parts -

120_nervous system chart.png

Note :- Group of neuron in CNS is called nucleus.

Posted Date: 10/3/2012 1:14:44 AM | Location : United States







Related Discussions:- Nervous system, Assignment Help, Ask Question on Nervous system, Get Answer, Expert's Help, Nervous system Discussions

Write discussion on Nervous system
Your posts are moderated
Related Questions
What is the difference among white and red blood cells? What are leukocytes? Red blood cells are erythrocytes and white blood cells are the leukocytes. Leukocytes are cells

The effect of light on the growth of stems (a)  Plant some seeds that grow rapidly like as oats, radish, bean or mustard seeds in two flower pots. When the seedlings are about

Which of the following defines why the vast majority of segregation errors in human patients include the two sex chromosomes (XXY, XO, XYY) or chromosome 21 (triple 21)? A. Th

Q. Use of Gloves as personal protective equipment? Gloves are task specific. The different types of gloves worn in the dental office are: i) Examination gloves ii) Over o

At 1 AM, an impermeable membrane separates a 1 liter solution of 1M NaCl in the left compartment from a 1 liter solution containing both 1M NaCl and 1M KCl in the right compartment

If molecules diffuse down their concentration gradient and achieve equal concentration throughout a container or cell, does all movement stop? Explain your answer.

Define and compare bone modeling and remodeling Bone modeling is a surface-specific activity (apposition or resorption) that produces a net change in the sie and/or shape of a

The main causes for the rapid growth in the quantity of solid wastes are- (i)     Over population: the ever increasing population is increasing all types of pollution; same is t

Each of the three eukaryotic RNA polymerases has more subunits or 12 and so these are big complex enzymes. The genes encoding some of the subunits of each  eukaryotic  enzyme  show

Metazoan Branches The Kingdom Animalia comprises all the multicellular animals (metazoans). These are divided into three branches: Mesozoa Parazoa Eumetazoa