Processing, please wait...
It was processed successfully!
It was processed successfully!
Login Create Free Account
Create Free Account

Nervous System Definition

The nervous system gathers information via sense receptors and controls the body's actions. For example, it enables running by transmitting signals.

View Lesson on Multicellular Organisms
Grades 6-8 VideoMulticellular Organisms player orange
Preview Only
Oops! It looks like your security settings are blocking this video 🙁

If you are on a school computer or network, ask your tech person to whitelist these URLs:
*.wistia.com, fast.wistia.com, fast.wistia.net, embedwistia-a.akamaihd.net

Sometimes a simple refresh solves this issue. If you need further help, contact us.


Multicellular Organisms

Fun Facts

  • Medicine like aspirin tricks our nerves into not feeling pain from a headache.
  • Sense receptors in our eyes, ears, tongue, skin, and nose are part of the nervous system.
  • A neurologist is a doctor that specializes in studying the nervous system.

Why Do We Need To Know About Nervous System

Learning about the nervous system helps us know how our bodies work.  This is important for many jobs. For example, doctors who focus on the brain, called neurologists, use this knowledge to figure out and treat problems, showing why it’s important to understand how our nerve cells work.

This knowledge is useful in everyday life and in many jobs. It helps us understand how we experience the world, helps in creating medicines like aspirin that reduce pain, and is important for people working in sports medicine, physical therapy, and even cooking. This shows how knowing about the nervous system is useful for lots of different areas.

Frequently Asked Questions

How do the various parts of the body work together when we eat something?
When we eat something, food travels through our digestive system, which includes our mouth, stomach, intestines, and other organs. After food is digested, our bodies use it for energy and to help us stay healthy. We eliminate food we don’t need as waste through our excretory system.
How are plant and animal structures similar? How are they different?
Plants have different parts that need to work together, but they are different from animal parts. Plants get their energy and make their food using the Sun, and animals need to eat to get energy.
How is our body system organized?
Our body is made of cells, cells work together to form tissue, tissues make up organs, organs make up our body’s subsystems, and all the subsystems work together to keep our body system alive and healthy.
Explore More Science Topics
We’ve sent you an email with instructions how to reset your password.
Choose Your Free Trial Period
3 Days

3 days to access to all of our teaching resources for free.

Continue to Lessons
30 Days

Get 30 days free by inviting other teachers to try it too.

Share with Teachers
Get 30 Days Free
By inviting 4 other teachers to try it too.
4 required

*only school emails accepted.

Skip, I will use a 3 day free trial

Thank You!

Enjoy your free 30 days trial