Sheep Brain Dissection

 In this dissection, we were able to identify the main structures of the brain and their functions as well as the ability to practice proper dissection techniques. In different stages of the dissection we were able to see the outer and inner structures of the brain, including: the cerebrum, cerebellum, brain stem, corupus collosum, medulla oblongata, pons, midbrain, thalamus, and hypothalamus. Using what we had learned in our notes, we were able to determine the functions of each of the structures we identified. Before we began to dissect, we identified various structures which included the cerebrum in the brain provides for higher brain functions such as thoughts or actions. As for the cerebellum, it coordinates and regulates muscular activity. The brain stem transports information to and from the brain.  The main function of myelin in a neuron is to increase the speed of nerve impulses. As we cut the brain longitudinally, in the pictures above, it contains the corpus collosum, the medulla oblongata, pons, the midbrain, thalamus, and the hypothalamus. The main function of the corpus collosum is a large bundle of neuron fibers that connect the two hemispheres of the brain. The medulla oblongata main function is aiding in digestion, the pons helps in circulation, and the midbrains main function is to help with breathing. The optic nerve main purpose is to transfers visual information from the retina to the visual centers of the brain from electrical impulses. Lastly, the thalamus' main function is sorting data and sending it to its desired location and the hypothalamus' main function is maintaining homeostasis.