Today during anatomy we did a virtual lab where we dissected a leech! We got a leech and soaked it in a salt solution to take care of the exracellular space, then we began to dissect it. We cut it down the midline, and then removed its guts and connective tissue; leaving th nerve cells visible. With the nerve cells visible we were able to find a ganglion cell. We then used a micromanioulator and three different stimuli (feather, probe, and forceps) to stimulate the ganglion cell and record its responses to stimuli. After testing the cell we injected it in different areas with dye and put it under a UV light to see the cell body and other cell parts after stimulated. With this we were able o see that different types of cells react differently to different types of stimuli. The feather, probe and forceps created different levels of stimulation within the different cell and since each celll had different functions, all the cells produced different responses to the stimuli.
leech picture: http://www.google.com/imgres?imgurl=http://www.pbs.org/wgbh/nova/assets/img/posters/leeches-vi.jpg&imgrefurl=http://www.pbs.org/wgbh/nova/body/leeches.html&usg=__xGlsEZPgof5Ks4zsdPmGK4mA_0U=&h=259&w=460&sz=32&hl=en&start=33&sig2=oqCV2bxXiYYF98ArLWdmCg&zoom=1&tbnid=zM4inMqQhPKhMM:&tbnh=72&tbnw=128&ei=MaamULjPB_DUyQH71oCAAg&prev=/search%3Fq%3Dleeches%26start%3D20%26um%3D1%26hl%3Den%26safe%3Dactive%26sa%3DN%26rls%3Dcom.microsoft:en-us%26tbm%3Disch&um=1&itbs=1
