Neurophysiology

AIM:
The aim of this virtual lab was to explore the nauseous system of a leech and the nerve cells that atomic number 18 trustworthy for collecting touch information from the skin of the leech to its brain.
fundament:
Leeches are members of the phylum Annelida which, in other words, are section worms (Satoshi Amagai et.al, 2012). The medicinal leech used in hospitals for its anesthetic properties has 34 Ganglia. Ganglia are a bundle of nerve cell tissues which are non central to the nervous system and in leeches they are found along the nerve cord (Andrew Tate, 1996). Leeches have a brain unlike some of the invertebrates such as the squid( go in 2).Also, the leeches conk to a minority called Hirudinea (Satoshi Amagai et.al, 2012) and they are distinguished by the suckers at the ends of their bodies. A detailed description of the leechs anatomy can be seen in figure 1 below. In the nervous system, the neurons serve to restore functions if disturbed, as a sign of negative feedback. Neurons are cells which carry out galvanizing impulses throughout the nervous system(Minka Peeters Weem et.al,2008).The leech, once disturbed or triggered, reacts as a result of touched neurons and sends information from the ganglion to the brain and in conclusion results in a reaction (Dr.Richard Emes et.al, 2012).












Figure 1: flyaway system and anatomy of a medicinal leech (Andrew Tate, 1996).

Figure 2: Leech Anatomy (Aaron Harden, 2012).
HYPOTHESIS:
If the dyed canvas shows the nervous system of the leech then the different cells in the nervous system triggered with a variety of different instruments would pomp different images.
PREDICTIONS:
* Each neuron cell triggered with the instruments would show a different image
* Many cell types would be present, not only one






VARIABLES:
1) Independent Variable:
Cell type depicted on the dissecting microscope (Type N, T, P, X or R)
2) Dependent Variable(s):
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