What is Nervous System?
The nervous system controls the functions of every part of the body. It also tells the body how to respond when it comes in contact with some stimulus.
So, how does the nervous system work?
The nervous system is made up of:
Central Nervous System:
- Brain and Spinal Cord
Peripheral Nervous System:
The peripheral nervous system is controlled by the central nervous system and connected to every muscle in our body. The entire nervous system is made up of billions of pyramidical cells called neurons. Short thread-like branches called dendrites connect the neurons to each other.
Neurons send messages throughout the body in the form of short bursts of electricity. The brain and spinal cord receive impulses from different organs and senses and tell them how to react.
Interesting Fact about the Nervous System:
Impulses travel at the speed of several hundred miles per hour. So, an impulse can go from your head to foot in just a very small fraction of a second.
Looking for more biology articles and videos? Go to: Biology for Kids.