Sheep Brain Dissection Lab

Question 1:

Labels of the anterior, posterior, cerebrum,
cerebellum, and brain stem

My drawing of the picture above

Question 2:

Question 3:

Myelin helps to insulate our nerves to decrease the time that messages can be processed.

Question 4:

Labeling the thalamus, optic nerve, medulla oblongata,
pons, midbrain, corpus callosum, and hypothalamus

My drawing of the picture above

Question 5:

Question 6:

A cross sectional cut of the cerebrum

My drawing of the picture above

Relate and Review:

For this lab, we dissected the brain of a sheep, and identified the different parts that we were able to uncover while doing it. First, we labeled the anterior and posterior of the brain and the cerebrum, cerebellum, and the brain stem after attempting to remove some of the meninges.  The brain was then cut longitudinally in order to see some of the myelination of white vs. gray matter, and we labeled the thalamus, optic nerve, medulla oblongata, pons, midbrain, corpus callosum, and the hypothalamus, before cutting the cerebrum in half once more to reveal further details on the differentiation of gray and white matter. In this lab, we were also tasked with finding the functions of each of the parts that we labeled on the heart, and in this way, were able to learn both the anatomy and the physiology of the parts of the brain. Like the Sheep Eye Dissection Lab, the association of what everything does while analyzing the physical characteristics of certain parts helped me really understand how the parts of the brain work together to make us the way we are.