Anatomy Webquest Assignment

WebQuest: Neurotransmitters, Cravings & Addiction

Objectives:
1.) The student will be able to explain the structure and the function of each part of the neuron.
2.) The student will be able to explain the connection between neurotransmission and addiction.


Have you ever wondered why you crave chocolate or have to have your morning coffee?
Have you ever wondered why you need that can of cola to keep awake during the day?

In this investigation you will explore the connection between addiction and neurotransmission to help answer the question why. You will take a look at how caffeine, as well as how nicotine, alcohol, marijuana and cocaine can affect neurotransmission in the human body. You will also learn the parts of a neuron and how they function.

This webquest is divided into two parts:

1.) The Basics: “The neuron – its parts & how it works”
A.) What is a neuron?
B.) What are the parts of a neuron?
C.) How do neurons work?
D.) What is the connection between neurons, the brain and the body?
E.) Quiz: What did you learn about the neuron?



2.) An Example: “Is caffeine addictive?”
A.) What is caffeine?
B.) Which foods and beverages contain caffeine?
C.) How does caffeine affect neurotransmission?
D.) And …what about chocolate?


Part 1 - The Basics: “The neuron – its parts & how it works”
Directions: To investigate the structure & function of the neuron you will:

1.) Visit the websites assigned in this webquest for Part 1.
2.) Complete the “Investigation Worksheets #1 and #2”
3.) Prepare for the quiz. View attached graphics.

A.) What is a neuron?
1.) Go to: http://faculty.washington.edu/chudler/what.html
a.) Find and record the definition for a neuron.

B.) What are the parts of a neuron?
1.) Go to: http://faculty.washington.edu/chudler/cells.html
a.) Draw the neuron and label its parts.
b.) Play “Build a Neuron”


C.) How do neurons work?
1.) Go to: http://faculty.washington.edu/chudler/ap.html
a.) Read about how neuron carry “messages” through the “Action Potential”.

2.) Go to: http://sun.science.wayne.edu/~wpoff/cor/bod/neurons.html
a.) Read about how two neurons work together.

3.) Go to: http://faculty.washington.edu/chudler/synapse.html
a.) Read about the “Synapse”

4.) Go to: http://www.ndgo.net/sfn/nerve/
a.) Read and see movies about how nerves communicate with one another.

5.) Go to:
http://science.education.nih.gov/supplements/nih2/addiction/activities/lesson2_neurotransmission.htm
a.) View “How Neurotransmission Works”
b.) View “Neurotransmitter Action”
c.) View “Neurons in Series”

6.) Go to: http://faculty.washington.edu/chudler/chnt1.html
a.) Read about “Neurotransmitters”
b.) Find and record the six “Small Molecule Neurotransmitter Substances”

D.) What is the connection between neurons, the brain and the body?
1.) Go to: http://faculty.washington.edu/chudler/cells.html
How many neurons does the human brain contain?

2.) Go to: http://faculty.washington.edu/chudler/nsdivide.html
a.) Read about the two parts of the nervous system: (CNS & PNS)
b.) Answer questions listed on Investigation Worksheet #2.

Resource: Terms & Definitions for Neuroscience.
Go to: http://www.sfn.org/content/Publications/BrainBackgrounders/glossary.htm

Part 2 - An Example: “Is caffeine addictive?”

Directions: To investigate caffeine and neurotransmission you will:

1.) Visit the websites assigned in this webquest for Part 2.
2.) Complete the “Investigation Worksheet #3”.

End Here for Monday....



A.) What is caffeine?

1.) Go to: http://chemistry.about.com/od/moleculescompounds/a/caffeine.htm?terms=what+is+caffiene%3F
a.) Find the chemical structure of caffeine.

2.) Go to: http://faculty.washington.edu/chudler/caff.html
a.) Read about the chemical compound that is caffeine.

B.) Which foods and beverages contain caffeine?

1.) Go to: http://faculty.washington.edu/chudler/caff.html
a.) Look at the list of foods and beverages that contain caffeine.

C.) How does caffeine affect neuron transmission?

1.) Go to: http://faculty.washington.edu/chudler/caff.html
a.) Read about how caffeine affects neurotransmission.

2.) Go to:
http://chemistry.about.com/od/moleculescompounds/a/caffeine.htm?terms=what+is+caffiene%3F
a.) Read about how caffeine affects the neurons.

3.) Go to:
http://www.hhmi.org/cgibin/askascientist/highlight.pl?kw=&file=answers%2Fneuroscience%2Fans_010.html
a.) Read about: how caffeine affects the synapse.

D.) And what about chocolate…how does it affect neuron transmission in the brain?

1.) Go to: http://faculty.washington.edu/chudler/choco.html
a.) Read about how various chemical compounds in chocolate affect the way we feel!


E.) Addiction…what is it, what causes it?

1.) What causes addiction?

a.) Go to: http://www.sfn.org/content/Publications/BrainBriefings/addiction.html
Read “Addiction's Path”, Brain Briefings, Society for Neuroscience, July 1997.

b.) Go to: http://teens.drugabuse.gov/facts/facts_brain1.asp
Read “Brain and Addiction”, National Institute on Drug Abuse



2.) Information on specific drugs.
Drug Websites

Caffeine
http://faculty.washington.edu/chudler/caff.html
http://chemistry.about.com/od/moleculescompounds/a/caffeine.htm?terms=what+is+caffiene%3F
See #3 under … C.) How does caffeine affect neurotransmission? … as listed above.


Nicotine
http://faculty.washington.edu/chudler/nic.html
http://www.sfn.org/content/Publications/BrainBriefings/nicotine.html
http://parentingteens.about.com/cs/drugsofabuse/l/blnicotine1.htm?terms=What+is+nicotine%3F


Alcohol
http://faculty.washington.edu/chudler/alco.html
http://www.sfn.org/content/Publications/BrainBriefings/alcoholism.htm
http://www.sfn.org/content/Publications/BrainBriefings/brain_on_alcohol.html


Marijuana
http://faculty.washington.edu/chudler/mari.html
http://parentingteens.about.com/cs/marijuana/l/blmj1.htm
http://teens.drugabuse.gov/facts/facts_mj1.asp


Cocaine
http://faculty.washington.edu/chudler/coca.html
http://www.sfn.org/content/Publications/BrainBriefings/glutamate.html
http://psychology.about.com/library/clinical/bladdiciton_cocaine.htm


Other Drugs
http://www.drugabuse.gov/drugpages.html