Sheep Brain Dissection

This shows the anterior side of the brain (white),
posterior side(black), the cerebellum(green), the
cerebrum(yellow), and the brain stem(red).

Sketch of the brain cut in half

In this lab, we dissected a sheep brain to identify important brain structures and their functions. First we got the brain and looked at the meninges, or the 3 layer tissue that protects the brain and spinal cord.  Next we removed the meninges and labeled the anterior side of the brain with a white pin, the posterior side with a black pin, the cerebellum with a green pin, the cerebrum with a yellow pin, and the brain stem with a red pin. Then we took pictures and sketched it.  Now, we cut the brain in half so we could see the grey and white matter.  Next we identified some more parts and labeled them with markers.  We marked the thalamus with a yellow pin, the optic nerve with a green pin, the medulla oblongata with a silver pin, the pons with a white pin, the midbrain with a blue pin, the corpus colassum with a red pin, and the hypothalamus with a black pin then took pictures and sketched it. We then identified the function of these structures and then cut a cross section in the cerebrum to see more grey and white matter and then sketched it.

sketch of the brain untouched

white and grey matter