Leech Lab

This is was a very fun little project, a dissection nix the squirting organism juices. I can smell the anesthesia now!

Here is a picture of the oscillator saying, "You've poked him where he feels it, Billy!"
Here is the dyed nerve cell under Ultra Violet:



1.An electrode measures a nerve impulse
2.Leeches are a great specimen for this experiment, because it is very simple. Simple organisms can give us clues as to how more complex systems operate. No one will be to sad at the loss of a leech, save for the crazy (but caring) people at PETA, and can you really trust people who protest wearing only cellophane? (JUST KIDDING!!, for all you PETA people, more power to you.)
3. Sensory neurons detect stimulus whether internally or externally, these are the neurons that "sense." Motor neurons are the reaction sent by the brain or other interneurons as a reply to the sensory impulse.
4. I think leeches experience pain (not in the sense that his girlfriend left him, that's not even why she sucks.hahaha) Pain is simply impulses sent from chemoreceptors to tell the body of damage done.
5. The two most interesting things about this lab were the uses of the probe for oscillation reception and UV dying. It was very interesting, something that would be fun to do for real someday.
6. Off of the bat it was confusing that they were identifying cells that were specific to leeches that weren't explained.