Mouse Dissection for Biology Project

Today, we're dissecting mice for our next Biology project.
The purpose of this dissection is to display the organs, digestive system, blood circulation of a mammal.
Our teacher gave us a mouse(specimen) each for dissection.
Before we began, our teacher demonstrated to us the way of dissection.
First, kill the specimens by using Chloroform.
Those specimens were dying...
Pin the specimen to a dissecting board,
with the ventral surface upwards. Cut a hole in the middle of the abdomen and cut it towards upwards.

Open up the abdominal cavity to display the internal organs.

We can see the liver, ducts of liver, stomach, duodenum, pancreas, and hepatic portal vein.
For the circulatory system, we can see the heart, lungs and veins...For the circulatory system, we can see the heart, lungs, veins...
Oh...and also reproductive system...Separate the small intestines from the large intestines by cutting the supporting mesenteries holding the duodenum in its looped form.Haha...Just now was a demonstration by my teacher.
It's my turn to dissect...
Huh!! Why my specimen's stomach was so big??I ignored it, kept cutting...Ohhh!!! Many foetus inside(below of it)!!!
Ha Ha!! I got a pregnant one...I opened the placenta.. This is how the foetus look like...When I finished my dissection, I clean up all of the apparatus and the specimen.
But, my classmates asked me to take photo for them...
What they did was....
They wrote their name beside the specimen just for me to take pictures to them...
LOL