Perch Virtual Dissection Lab : Hillary Huang
The circulatory system of a perch is a low pressure single type system that consists of a heart that has one atrium and ventricle. The deoxygenated blood is pumped through the heart and then to the gills. After this process, it is then oxygenated and sent back through the body of the perch. When the perch breathes, you may see lines at where the blood goes through. This shows that they need their blood to breathe.
The liver is also part of the circulatory system. After the small intestines pass on nutrients to the liver, the liver than sends nutrients throughout the body. The digestive and circulatory systems work together to distribute nutrients throughout the body.
In this photo, you can see the Perch labels and what each structure is.
These were the gills found above the heart and under hard flaps known as the operculum.
You can see the organs of the perch laid out next to the perch and on the paper towel.
Perch ( Before)
The perch before the dissection.
Perch ( During)
As you can see, the perch has many organs and a lot of muscle near the bones. The heart is located underneath or near the gills.