Dissection

This are the stepes to disect a mouse. >< When I first touch the mouse, I feel pretty sorry for them. Although there is only 9 out of 13 students are taking BIO in my class that time, but it still not feel so good to "kill" a little mice. Everyone each mice. And I remembered that one of my classmate's mice become "bloody mice". accidentally perhaps. Because if dissect in the right way, then it will not bleed.

First, use chloroform to make the mouse faint, but is still alive. Then, pin its limbs.
This is to fix the position to prevent dissecting other part of the organs.
There seems to be 3 layers skin. The first layer is the fur. the second is the fats with membrane layer. then the final and the inner part is the thorax, which is to protect organs like heart and lungs.

After dissect, we need to observe the organs. The heart are still beating, and then the lungs are also functioning.(><) Now I know how cruel is the scientist is while dissecting the animals for experiment.