Perch dissection Pre-AP Biology March 13, 2014- Guzman
Our perch has been dissected, and we may or may not have taken out the liver.
Me and my Perch!
This perch smells a bit fishy, so excuse the distance.
This is the perch before we hacked off part of it's body.
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.