Brain Lab

During this lab, we cut open a sheep's brain to observe and analyze the different parts that make a functioning and healthy sheep's brain. We first cut the brain in half horizontally to have a medial plane view of the brain. This is where we saw the cerebrum, cerebellum, brain stem, thalamus, optic nerve, medulla oblongata. Afterward, we made more cuts (portioned out the brain) to look into the gray and white matter more. After this tab was completed, my group members and I learned a lot about both the anatomy and physiology of different parts of the sheep's brain. In the end, each part in the brain works hand in hand to create a proper brain. This lab was very enlightening because it was very hands on.



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2.) The cerebrum is the largest part of the brain and it is asscoiated with higher brain function (thoughts and actions properly thought out.) The cerebellum coordinates voluntary movement and balance. The brain stem regulates heart rate, breathing, sleeping and eating. The anterior is the front side of the brain while posterior is the back side of the brain.

3.) The myelin sheath is part of the nervous system. Without the myelin sheet, nerve impulses break down and shrivel up. This is the cause of sclerosis. If the myelin sheath is functioning properly, then it increases the speed of impulses.

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5.) The thalamus relays and processing center for sensory and motor info. THe optic nerve takes info from the retina to the brain. The medulla oblongata regulate breathing, hear, and blood vessel, digestion, sneezking, and swallowing. Pons is a brainstem structure that regulates the brain during sleep and little movement. The midbrain is involved with vision, hearing, motor control, sleep, and temp regulation. Corpus Callosum is a communication link between the left and right cerebral hemisphere. The hypothalamus is where the brain's blood testing laboratory, constantly monitoring the blood to determine the body's condition.

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