Tuesday, May 26, 2015

Fish - Dissection

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SWEDISH's FINAL HOURS

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Patient #001884: Sushi, Swedish





Specimen: Fish
Height: 6 in
Eye Color: BLK
Weight: 12 oz
Ethnicity:  Perch

Biography: There are many types of fish in this world, however; all of them live in the water. Some live in freshwater, and some in salt-water areas. Further, some can be found close to the surface, or in deep depths. This also determines the type of food that they eat. Fish are not picky eaters, so they tend to eat anything in their environment which can include, algae or plankton. Of course, if you have a pet fish, in a bowl, you have to feed them with tiny flakes filled with nutrients. Some make the mistake of over-feeding, which causes the fish to go belly-up (EHHMM, Mr. Filipek) But of course, eating isn't the only important aspect of staying alive while being fish. Another aspect is being able to breathe. Now you are probably like, what.. Fish breath? Why, yes they do! They do this by taking in water through their mouths, and force it all through their gills which removes the oxygen molecules in the water! Fun fact: In finding Nemo (I promise this is relevant Filipek), when Nemo was caught with all the Tuna in the net, most individuals thought that it was impossible for them to forcibly swim down and get freed. However, Tuna can actually swim up to 45mph; so it would make sense that they were allowed to free themselves. 

REFER TO THE INFORMATIONAL DISSECTION VIDEO AT THE BOTTOM IF KNOWING HOW TO DISSECT THIS ORGANISM IS DESIRED. THE VIDEO CONTAINS A DETAILED VISUAL AND VOICEOVER.

Dissection Incision:

The dissection procedure for the perch is actually very easy. Simply take your scalpel and make an incision of the shape of a rectangle on the side of the perch's body, as depicted above.


External Anatomy



Gillstake oxygen out of the water and let water carry away carbon dioxide
Fins: appendages that allows the fish to swim

Internal Anatomy

Large Intestine: where absorption of nutrients is carried out and waste is transformed into fecal matter 
Eye: Sensory organ; used for vision
Stomach: digests food
Gills: take oxygen out of the water and let water carry away carbon dioxide
Bladder: where urine from the kidneys is collected
Spine: supports body structure; protects spinal chord
INFORMATIONAL DISSECTION VIDEO BELOW



Works Cited
http://visual.merriam-webster.com/animal-kingdom/fishes/bony-fish/anatomy-perch.php

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