1. Homeostasis Unit
Biology

2. March 19 – Lesson Question
What are the components of the Nervous System and how do they function?
Page 93

3. Nervous System – 2 Components working together

4. Central Nervous System
Brain
3 major regions
Spinal Cord
Connects brain and peripheral nervous system

5. Central Nervous System
Cerebrum
Movement, senses, speech, abstract thought
Cerebellum
Maintain balance
Brainstem
Link between brain and the peripheral nervous system

6. Peripheral Nervous System
Network of nerves that branch out from the central nervous system and connect to the rest of the body.

7. March 17
Reaction time lab
Page 94
Read the instructions aloud with your group.
What questions do you have?

8. Reaction Time Lab
What two reflex reactions are we investigating? What is the difference between the two?
How will you record your data?
For how many people will you record data?

9. Reaction Time Lab
Data collection: 10 minutes
Data Analysis Time: 15 Minutes
Get my signature on the analysis questions!

11. Action Potentials
Let’s watch a brief video to learn how neurons actually transmit messages.
As you watch, write 3 important details. This video has challenging content, so let’s work together to learn from it.