Unit 3 Lab 1
For this lab we had to do an online simulator of dissecting a leach and studying its neurons.
Here are the assignment questions.
1. What is the electrode measuring?
The electrode is measuring the activity of the neurons.
The electrode is measuring the activity of the neurons.
2. Why use leeches in neurophysiology experiments?
Because people don’t feel sorry for leaches like they would a mouse or any other kind of animal. They also have easily accessible neurons.
3. What is the difference between a sensory and a motor neuron?
A sensory neuron sends messages to the central nervous system. A motor neuron sends messages away from the nervous system to muscles etcetera telling them what to do. 4. Do you think a leech experiences pain? What is pain?I think that they do because they have nerves that can transmit pain to the brain. Pain is a feeling you perceive in your nerves but it is translated as ouch by your brain.
5. What were the two most interesting things about doing this lab?
It was fun to be able to just push a button and watch the leach be pined and cut open. It was also interesting how many neurons a tiny leach has.
6. Anything you found confusing or didn't like about the lab?
It’s hard to know if I got the right picture for the assignment sometimes I’m not sure of these online labs if I’ve done it right or not.
The pictures are from the website showing the procedure.
Web Address for this lab: http://www.hhmi.org/biointeractive/vlabs/neurophysiology/index.html
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