1. Instructor: Sarah Jones
The Nervous System
Instructor: Sarah Jones
7th Grade Science

2. Terms to Learn Peripheral nervous system Central nervous system Neuron
Nerve
Brain
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

3. The Nervous System Two Parts: Peripheral Nervous System
Central Nervous System

4. Peripheral Nervous System
The peripheral nervous system (PNS) is all of the parts of the nervous system except for the brain and the spinal cord.
Two parts:
Sensory part (sensory neurons)
Motor part (motor neuron)
Neuroscience For Kids - Explore the nervous system
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

5. Peripheral Nervous System

6. Peripheral Nervous System Cont…
Somatic
Autonomic
Somatic nerves are under your control
These are the neurons that stimulate skeletal muscles
Control voluntary movements, such as writing, talking, smiling, or jumping.
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.
Autonomic nerves do not need your conscious control.
Controls body functions that you do not think about, such as digestion and heart rate.
Two parts:
Sympathetic and parasympathetic nervous system.

7. Central Nervous System
The central nervous system (CNS) is the brain and spinal cord.
The Cerebrum- The largest part of your brain.
The Cerebellum-Lies beneath the cerebrum.
The Medulla-Connects to the spinal cord.
Your Gross and Cool Body: Nervous System
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

8. Central Nervous System

9. Central Nervous System
Brain
is the mass of nerve tissues that is the main control center of the nervous system.
Spinal Cord
Made of neurons and bundles of axons
Communicates with your peripheral nervous system
Spinal cord injuries block information to and from the brain.
A Science Odyssey: You Try It: Probe the Brain
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

10. Review What is the peripheral nervous system?
What is the central nervous system?
IMCPL Kids' Info Guide: Nervous System

11. Neuron

12. Neuron Structure
A neuron is a specialized nerve cell that transfers messages in the form of fast-moving electrical energy.
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

13. Nerve

14. Nerve Structure
A nerve is a collection of nerve fibers (axons) through which impulses travel between the central nervous system and other parts of the body.
Nervous System - Science for Kids!
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

15. Review
What is this?
What is this?

16. Activity
Sit in a chair with one arm in a “handshake” position. Your partner should stand facing you, holding a meterstick vertically. The stick should be positioned so that it will fall between your thumb and fingers.
Tell your partner to let go of the meterstick without warning you. Catch the stick between your thumb and fingers. Your partner should catch the meterstick if it tips over.
Record the number of centimeters that the stick dropped before you caught it. That distance represents your reaction time.
Repeat steps 1-3 three times. Calculate the average distance.
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.

17. Concept Map Instructor: Sarah Jones Topic: The Nervous System
Name: ____________________ Date: ______________
Complete the following map by filling in the squares with the information on the powerpoint:

18. References
Holt, Rinehart, and Winston, inc. Holt Science & Technology : Life Science. Austin : Holt, Rinehart &Winston, 2006.
Chudder, E.H. ( ). Neuroscience for kids. Retrieved February 16, 2009, from
WGBH. (1998). A science odyssey. Retrieved February 16, from
IMCPL. (2009). IMCPL kids’ info guild : Nervous system. Retrieved February 16,2009, from
Carr, K. ( ). Nervous system-Science for kids! Retrieved February 16, 2009, from
Discovery Communications Inc. (2000). Your gross and cool body : Nervous system. Retrieved February 16, 2009, from