Skip to main content

CBSE Class 9th Science Notes - Animal Tissues – Nervous Tissue

CBSE Class 9th Science Notes - Animal Tissues – Nervous Tissue

Nervous tissue is the tissue which works in coordinating with the organs of the body by generating impulses.
It is made up of special cells called as neurons.
Each neuron consists of a cell body, which contains a nucleus, cytoplasm, called cyton, and elongated hair-like extensions, called dendrites.
One of the dendrites, called the axon, is very long.  Nervous tissues are found in the brain, spinal cord, and nerves.
1) It consists of cell body which contains central nucleus and cytoplasm from which long thin hair like part arises called dendrons.
2) The axon is a single, long, cylindrical structure that conducts electrical impulses away from neuron’s cell body.
3) The dendrons further branches into dendrites.

The cells of the nervous tissue are highly specialized and the cells of this tissue are called nerve cells or neurons.
The Nervous tissue stimulates and transmits the stimulus very rapidly from one place to another within the body.
The brain, spinal cord, and nerves are composed of the nervous tissue.
NCERT Solutions for Class 9 Science, Maths, English, Social Science and Hindi are available. Register with us for details.
Labels:

Comments

Post a Comment

Thank you we will contact ASAP.

Popular posts from this blog

Lessons-Worksheets-Question Papers-CBSE Class 2 English

Lessons-Worksheets-Question Papers-CBSE Class 2 English CBSE 2nd Class English – One and Many  In this blog, we share the spelling rules used in the concept of  One  and Many. When there is only one of a naming word (noun), it is said to be a  singular noun . When a noun shows more than one, it is said to be in the  plural . We can add  –S, -es, -ves or ies  to show that there is more than one noun.  For example,  we say many birds, four biscuits, six brushes. But for the students of  Class 2 , it’s very difficult and confusing to understand where to use  s , es, ves or ies  in the form of many. Don’t worry, it looks difficult, but it is very easy as in grammar each concept has a set of rules that need to practice. Noun ending with  –s, -x, -o, -sh, -ch, and –ss  form plurals by taking  –es. Look at these pairs of words: Bus – Buses Brush – Brushes Continue ..... Click here ...
Post a Comment
Read more

Magnetic and non-magnetic material Class 6 Science

Magnetic and non-magnetic material  Class 6 Science A magnet is a substance that is drawn to certain magnetic materials like iron, cobalt, and nickel. Magnets have the ability to draw iron to them. Natural magnets are rocks that naturally draw iron. Non-magnetic materials include things like wood, rubber, coins, feathers, leather, etc. that are not drawn to iron. Magnet characteristics It pulls magnetic materials, such as iron. The magnet's two ends are referred to as its poles. The magnet's diametrically opposed poles are drawn together. Heating, hammering, or dropping causes it to lose its characteristics. On the basis of properties types of Magnets Temporary magnets are those magnets that are magnetic for only a little duration. Typically, iron, cobalt, or nickel are used to make them. When they are close to the powerful magnet, they act like a magnet. When they are yanked away from the powerful magnet, they stop being magnetic. Permanent magnets are magnets that have magne...
Post a Comment
Read more

Class 3 English Practice Grammar Worksheet -The Adverb

 Class 3 English Practice Grammar Worksheet -The Adverb Class 3 English – The Adverb – Kinds of Adverb Fill in the blanks with suitable Adverbs of place. Choose from the box.  Up               outside                       everywhere                 back                down      away          here                           there                     ...
Post a Comment
Read more