January 13th, 2020 Brown Girl Dreaming by: Jacqueline Woodson

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Directions: ANSWER USING COMPLETE SENTENCES! Use the information you have been given to answer questions about: The Nervous System and Your Actions

*To improve your MATH SKILLS spend at least 20 minutes practicing them using IXL.COM. (REMEMBER TO ENTER YOUR USER NAME AND PASSWORD WHEN LOGGING ON! THAT WILL BE PROOF THAT YOU DID IT!)

Level#1

The nervous system sends messages among the different organs of the body. These messages are signals called impulses. There are three ways the nervous system processes impulses. Reflexes are involuntary responses to outside stimuli. They happen without your brain "thinking" about them. These impulses are processed in your spinal cord rather than in your brain. Suppose you touch a very hot pan. Your arm muscles lift your hand away from the pan. This movement occurs before the pain message reaches your brain.

1. What does the nervous system do?





2. What are reflexes and how do they happen?





3. Where are the impulses that reflexes produce processed?








Level#2

The nervous system sends messages among the different organs of the body. These messages are signals called impulses. There are three ways the nervous system processes impulses. Reflexes are involuntary responses to outside stimuli. They happen without your brain "thinking" about them. These impulses are processed in your spinal cord rather than in your brain. Suppose you touch a very hot pan. Your arm muscles lift your hand away from the pan. This movement occurs before the pain message reaches your brain. Automatic impulses are those that control how your body's organs function. They cause your stomach muscles to squeeze together. They help you breathe. They also keep your heart beating.

1. How many ways does the nervous system process impulses and what are reflexes?





2. Explain how reflexes happen and where reflexes are processed in the body.






3. Explain what automatic impulses are, and give three examples of automatic impulses.











Level#3

The nervous system sends messages among the different organs of the body. These messages are signals called impulses. There are three ways the nervous system processes impulses. Reflexes are involuntary responses to outside stimuli. They happen without your brain "thinking" about them. These impulses are processed in your spinal cord rather than in your brain. Suppose you touch a very hot pan. Your arm muscles lift your hand away from the pan. This movement occurs before the pain message reaches your brain. Automatic impulses are those that control how your body's organs function. They cause your stomach muscles to squeeze together. They help you breathe. They also keep your heart beating. Voluntary nerve action means that you think about doing something first. Then, you do it. Voluntary nerve impulses usually control muscles.

1. What are the three ways that the nervous system processes impulses?









2. Explain what reflexes are, how reflexes happen, and where reflexes are processed.








3. Explain what automatic impulses are, what voluntary nerve action is, and how are they different.










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