- Our body is able to respond to various different stimuli (signals or actions) of the environment on us
- Cells of the nervous tissue are responsible for transmitting these signals quickly from one place of the body to another.
- The brain, spinal cord and nerves form the nervous system and they are all composed of nervous tissues
- The cells are called nerve cells or neurons . One cell can be even 1 metre long.
| PART | DETAILS | 
| Dendrites | Branched structure that collects information from previous neuron and passes on to the cell body or soma of neuron | 
| Cell body or Soma | It contains the nucleus and other organelles like mitochondria, endoplasmic reticulum, Golgi body etc. | 
| Axon | Tube-like structure that carries information from the cell body to the nerve endings | 
| Nerve endings | The end of the axon where the nerve terminates. | 
- The nerve cells collectively make up the nerve .
- The signals that pass through the nerves called nerve impulses allow us to move our muscles as per our will
- The nerves and muscles together enables animals to move and respond to stimuli rapidly
