Brain & Eyeball Dissection Lab Report This lab report can be made using a word p
ID: 3483934 • Letter: B
Question
Brain & Eyeball Dissection Lab Report
This lab report can be made using a word processing program or a presentation program such as Power Point and then should be uploaded into Blackboard. Make sure you include all of the information listed below in order to receive full credit for the assignment.
Investigative Question: How is the physiology of the sheep brain & cow eye correlated to the anatomy seen during the dissection of the two specimen?
Introduction:
Why are the sheep brain and cow eye used to study human anatomy?
What is the significance of the investigative question?
Hypothesis:
What were your initial thoughts about the about the answer to the investigative question?
Methods:
What types of observations did you look at?
How were the incisions performed?
What are some of the mini-experiments you conducted?
Results:
Include your observations – they must be organized & typed.
Include dissection photos – make sure you label major structures and include yourself in a few of the pictures.
Discussion:
Was your hypothesis correct? Why or why not?
What were some of the evidences you found in your autopsy that answered the investigative question?
What are further questions for investigation that you still have?
Explanation / Answer
1). Why are the sheep brain and cow eye used to study human anatomy?
Anatomically, the structures of sheep brain and human have similar structures, also, the cow eye and human eye are anatomically similar. So, they are used to study and understand the physiological processes and anatomical structures in the humans. The sheep brain dissection helps to locate the various important structures of the brain. Although there are similarities between the sheep brain and human brain, there are some differences. Some of them are depicted below.
Structure
Human
Sheep
Olfactory bulb
Small in size
Large in size
Pons/medulla relationship
Located towards more inferior; straight up and down.
Longitudinally located towards the ventral side.
Location of cranial nerve III
Small area, thin tissue.
Same area, thick tissue.
Mammillary body
Large in size.
Small in size.
Corpus callosum
Thick tissue, located in a linear manner.
Thin tissue, located in a slanted direction.
Intermediate-mass of thalamus
Large in size, pressed over the corpus callosum.
Small in size, small space is present between thalamus and corpus callosum.
Relative size of superior and inferior colliculi
Large in size
Small in size
Pineal gland
Small in size
Large in size
Structure
Human
Sheep
Olfactory bulb
Small in size
Large in size
Pons/medulla relationship
Located towards more inferior; straight up and down.
Longitudinally located towards the ventral side.
Location of cranial nerve III
Small area, thin tissue.
Same area, thick tissue.
Mammillary body
Large in size.
Small in size.
Corpus callosum
Thick tissue, located in a linear manner.
Thin tissue, located in a slanted direction.
Intermediate-mass of thalamus
Large in size, pressed over the corpus callosum.
Small in size, small space is present between thalamus and corpus callosum.
Relative size of superior and inferior colliculi
Large in size
Small in size
Pineal gland
Small in size
Large in size
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