You’ll need a preserved sheep brain for the dissection. Download: Sheep Brain Dissection Lab Observation: External Anatomy of Sheep Brainġ. See for yourself what the cerebrum, cerebellum, spinal cord, gray and white matter, and other parts of the brain look like with this sheep brain dissection guide! Use this for a high school lab, or just look at the labeled images to get an idea of what the brain looks like. They can be a valuable addition to your study of anatomy. Sheep brains, like other sheep organs, are much smaller than human brains but have similar features.