nervous+system

Much of the ATP animals generate goes to running one protein pump, the **__Sodium/Potassium pump__**, found in all muscles and nerves. Let's apply our understanding of cellular energy to this dynamic system. toc

**__Student Tasks__**

=Student Step 1:=


 * Watch the following videos to provide context: **


 * media type="youtube" key="90cj4NX87Yk" height="305" width="383" || media type="youtube" key="36UObImsnAo" height="307" width="384" ||
 * media type="youtube" key="JGPfSSUlReM" height="315" width="560" || media type="youtube" key="X_K6VqEQuaA" width="560" height="315" ||
 * media type="custom" key="5614053" ||  ||

Student Step 2:
View and take your own notes on the Sodium Potassium Pump using the link below:

@http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_the_sodium_potassium_pump_works.html

Student Step 3:
Complete the Ch 48 guided reading while/after reviewing these power points.


 * [[file:Ch 48 Neurons.ppt]] || [[file:Ch 48 Brain.ppt]] || [[file:7echap48guidedreading.doc]] ||

You may find this site (Harvard site again) very helpful when trying to put together answers for the nervous system:


 * @http://outreach.mcb.harvard.edu/animations.htm
 * be sure to click on the **NEUROBIOLOGY** link on the right side of the page.

Student Step 4:
Preview the introduction to a case study about the nervous system. Review the questions but don't try to answer them yet.


 * [[file:Bad Fish Part 1.doc]]

Student Step 5:
Work with your team to answer the case questions to part1. AFTER you work through them you can check your understanding.


 * Answers to come shortly!

Student Step 6:
Oh No, Not Again! Follow the Misfortunes of Dr. Marshall Westwood here and apply your understanding to two more questions with your team. >

Student Step 7 (If time permits):
In this section, your group will become a small pharmaceutical company that is trying to develop a drug that can be used in the hospital to treat tetrodotoxin poisoning. There is no antidote to tetrodotoxin poisoning. Therefore, it is extremely important that your company is successful in this endeavor. Your company will post a presentation in our google class folder. **You need to include the following:**

**Your Company Name:** // What do you want to call your company? Be creative! //


 * Name of Your Drug: **

**Mechanism of Action:** //Describe how your drug will work.// // Be sure to provide details regarding its action. You are now familiar with the activity of this toxin at the level of molecules and cells, so your description should contain details of how your drug works at that level. //

Some of your information will come from your understanding of what tetrodotoxin does to neurons. There is no right or wrong answer to how your drug will work because there currently is no drug to treat this problem. You may want to do some research on drugs that have actions at neurons (specifically sodium ion channels) and diseases that involve sodium ion channels. This will help you develop your drug.