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Dissection Lab Report
Danaille Rice
Ivy Tech Community College
APHY 101-XX
MARCH 8TH, 2021
ABSTRACT
The purpose of this lab was to dissect the sheep brain and cow eye and familiarize how closely
they relate to the human eye and brain. This lab helped us see first hand the different structures
of the eye and the brain. The method includes gathering all of your supplies, donning your
safety gear, and then you examine the features. My hypothesis is that the sheep brain and cow
eye will closely relate to the human eye and brain.
METHODS
The first step was to gather all the materials in order to conduct the experiment. These materials
include safety gear, pad, dissection tools, tray and the sheep brain and cow eye. To begin, I
started with the sheep brain. I examined the sheep brains external features. The next step, I
located the cerebrum, the brainstem, the cerebellum structures and the frontal, parietal, occipital
and temporal lobes as well as the central sulcus. Next, I observed the dura matter, the
arachnoid matter and blood vessels on the surface of the brain. My next step was to turn the
brain and examine olfactory bulbs, optic nerve, and the optic chiasm. Next I located the pituitary
gland, the midbrain, the pons and the medulla oblongata. I used my scalpel to make a mid
sagittal cut down the longitudinal fissure of the cerebrum and midline of the cerebellum to create
left and right halves. After doing that I located the lateral, the third and fourth ventricles as well
as the thalamus and the hypothalamus. I cleared my dissecting tray, cleaned it, and then put the
excess material in a secure location.
The next experiment I completed was the cow eye dissection. Step one was to gather all
necessary material for the experiment. And put on personal protective equipment. Next, I
removed all the fat from the cow eye using the scalpel. I then examined the sclera and the optic
nerve. My next step, I made an incision into the cornea. I made another incision along the
corneal place through the sclera in half, so I could examine both features. I cut through the
cornea with my scalpel and used the forceps to remove the iris. Then I used the forceps to
remove the lens of the eye. After removing the lens I removed the vitreous humor and was able
to observe the retina. I turned the eye over and examined the optic nerve and where it enters in
the eyeball.
DISCUSSION
My hypothesis of this experiment is that both the sheep brain and the cow eye would be similar
to those of a human. After conducting the experiments i do think they are similar. The issues I
encountered when doing the cow eye was trying to cut around it. It was rough. I didn’t really
think it would be like that. At first, you would think it would be easy to cut into an eye.

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Dissection Lab Report Danaille Rice Ivy Tech Community College APHY 101-XX MARCH 8TH, 2021 ABSTRACT The purpose of this lab was to dissect the sheep brain and cow eye and familiarize how closely they relate to the human eye and brain. This lab helped us see first hand the different structures of the eye and the brain. The method includes gathering all of your supplies, donning your safety gear, and then you examine the features. My hypothesis is that the sheep brain and cow eye will closely relate to the human eye and brain. METHODS The first step was to gather all the materials in order to conduct the experiment. These materials include safety gear, pad, dissection tools, tray and the sheep brain and cow eye. To begin, I started with the sheep brain. I examined the sheep brains external features. The next step, I located the cerebrum, the brainstem, the cerebellum structures and the frontal, parietal, occipital and temporal lobes as well as the central sulcus. Next, I observed the dura matter, the arachnoid matter and blood vessels on the surface of the brain. My next step was to turn the brain and examine olfactory bulbs, optic nerve, and the optic chiasm. Next I located the pituitary gland, the midbrain, the pons and the medulla oblongata. I used my scalpel to make a mid sagittal cut down the longitudinal fissure of the cerebrum and midline of the cerebellum to create left and right halves. After doing that I located the lateral, the third and fourth ventricles as well as the thalamus and the hypothalamus. I cleared my dissecting tray, cleaned it, and then put the excess material in a secure location. The next experiment I completed was the cow eye dissection. Step one was to gather all necessary material for the experiment. And put on personal protective equipment. Next, I removed all the fat from the cow eye using the scalpel. I then examined the sclera and the optic nerve. My next step, I made an incision into the cornea. I made another incision along the corneal place through the sclera in half, so I could examine both features. I cut through the cornea with my scalpel and used the forceps to remove the iris. Then I used the forceps to remove the lens of the eye. After removing the lens I removed the vitreous humor and was able to observe the retina. I turned the eye over and examined the optic nerve and where it enters in the eyeball. DISCUSSION My hypothesis of this experiment is that both the sheep brain and the cow eye would be similar to those of a human. After conducting the experiments i do think they are similar. The issues I encountered when doing the cow eye was trying to cut around it. It was rough. I didn’t really think it would be like that. At first, you would think it would be easy to cut into an eye. Name: Description: ...
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