"Sheep Brain Lab 2012" Name: Class Period 5 6 7 Lab Procedures: / 4 Introduction The brain is broken up into a variety of sections. We are going to discuss these sections and the different lobes of the brains importance. I will point out differences between the human and sheep brain to better help you connect the structures. Explain why you are doing this experiment in relation to the human brain. (5-7 sentences) ______ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ _________________________________________________ Question (What do I want to do?) (One sentences that ends in a QUESTION mark)- _________________________________________________________________ _____________ _________________________________________________________________ _____________ Hypothesis Please relate from the human brain to the Sheep Brain If, ____________ then, _______
Transcript
"Sheep Brain Lab 2012"Name: Class Period 5 6 7
Lab Procedures: / 4 IntroductionThe brain is broken up into a variety of sections. We are going to discuss these sections and the different lobes of the brains importance. I will point out differences between the human and sheep brain to better help you connect the structures.
Explain why you are doing this experiment in relation to the human brain. (5-7 sentences) ______ _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Question (What do I want to do?) (One sentences that ends in a QUESTION mark)-______________________________________________________________________________ ______________________________________________________________________________Hypothesis
Please relate from the human brain to the Sheep BrainIf, ____________ then, _______ Because_______________________________________________________________________Research (What do I already know, or need to know first?) 5-7 sentences______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Safety: (What do I need to make sure I do, or don’t do?) 3-5 rules__________________________________________________________________________________________________________________________________________________________________________________________________________________ _____________________________________________________________________
Experiment Keep detailed notes of your experiment, measurement and observations Materials
o Paper towelo Dissection pano Braino Gloveso Goggles
o Lab sheeto Scalpelo Probeo Scissorso Labeled zip lock bag
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Procedure: Should be detailed enough for anyone to be able to repeat your experiment by just reading the paper
Sheep Brains Day 1 Guidelines1. Today we will be covering parts of the brain and their functions2. Record observations about your lab procedures and the relationships you have seen.
Observations This section should include only those things that you saw, heard, touched, or smelled
List one or more functions of each lobe.Frontal Lobe
Parietal Lobe
Temporal Lobe
Occipital Lobe
Label the four lobes of the brain:
Draw and Label the brain from each of these Directional views:\Label ONLY the Cerebrum, Cerebellum and Brainstem
Dorsal Ventral
Lateral Sagittal
3. Gather your materials. Work in Groups of FOUR4. Rinse the brain under a slow stream of running water.5. Place your brain on TWO sheets of paper towel6. Identify the cerebrum, cerebellum and brain stem. Describe their color and appearance
Cerebrum
Cerebellum
Brain Stem
7. Record observations about your lab procedures and the relationships you have seen.8. Write group members names in permanent marker on your zip lock bag.9. Fold the paper towel to enclose all the parts of the dissected brain. Place this in the bag
and return to the front counter.10. Wash the dissecting board and other dissecting materials into the soap baths. DO NOT
WASH THE SCALPEL; this will be done for you.11. Dry materials and put them back on the counter in their correct bins.
Observations This section should include only those things that you saw, heard, touched, or smelled The goal of this section is to present the data that was collected in the activity in a clear
and easily understood format.Write down 5 physical characteristics of your sheep brain. (how it feels, color of the brain)1. (WEIGHT SHOULD BE ONE OF THESE!)
Sheep Brains Day 2 Guidelines12. Gather your materials. Work in groups of FOUR TO BEGIN13. Place your brain on TWO sheets of paper towel14. Notice that the cerebrum consists of two parts called hemispheres. Use the scalpel to
separate the two hemispheres and then cut the brain in half lengthways.
15. Sketch what you see and write TWO sentences to describe this.
16. Make a midline cut once you have identified ALL of the external structures. 17. Use your probe and gently tear along the longitudinal fissure. If you peer down into
the cavity, you will see the corpus callosum, the main relay for information passing from one hemisphere to the other.
18. Cut so you get a semetrical cut in one smooth slice using enough pressure to cut with one smooth pass of the blade. If both sides are not identical, ask for help
19. Divide into TWO groups for the remainder of the dissection.
Label the Midline Anatomy:Lateral Ventricle, Corpus Callosum, Thalamus, Spinal Cord, Medulla, Pons, Frontal Cortex, cerebellum
20. Be sure not to rip or tear anyother tissue.21. Record observations about your lab procedures and the relationships you have seen.22. Now cut two more medial cuts
Cut #2Cut #1Cut #3
Cut #2
Cut #3
Sketch what you see and write TWO sentences to describe this.
________________________
1. Return all parts of the brain and new paper towel to your PARTNER zip lock bag.2. Fold the paper towel to enclose all the parts of the dissected brain. Place this in the bag
and return to the front counter.3. Wash the dissecting board and other dissecting materials into the soap baths. DO NOT
WASH THE SCALPEL; this will be done for you.4. Dry materials and put them back on the counter in their correct bins.
ObservationsWrite down 5 physical characteristics of your sheep brain. (how it feels, color of the brain)1.
2.
3.
4.
5.
Draw the midline anatomy of YOUR brain and label.
Day 3 Guidelines
Sheep Brains Day 3 Guidelines5. In groups of two, get all of your materials and take them to your lab table. 6. Be sure to have your goggles on.7. Place your brain on TWO sheets of paper towel8. Make a Coronal Section cuts once you have identified ALL of the external structures and
Midline Anatomy CUT #1 CUT # 2 CUT #3
9. Sketch what you see of each of your Coronal Sections and write TWO sentences to describe this.
First Slice: Through anterior portion of corpus callosum
Label the Second Slice through massa intermedia:Corpus Callosum, Lateral Ventricle, Hipppocampus, Thalamus
12. Record observations about your lab procedures and the relationships you have seen.13. Be sure not to rip or tear anyother tissue.14. Return all parts of the brain and new paper towel to your PARTNER zip lock bag.15. Fold the paper towel to enclose all the parts of the dissected brain. Place this in the bag
and return to the front counter.16. Wash the dissecting board and other dissecting materials into the soap baths. DO NOT
WASH THE SCALPEL; this will be done for you.17. Dry materials and put them back on the counter in their correct binsObservations
This section should include only those things that you saw, heard, touched, or smelled Observations may be organized in table form or paragraph form The goal of this section is to present the data that was collected in the activity in a clear
and easily understood format.Write down 5 physical characteristics of your sheep brain. (how it feels, color of the brain)1.
2.
3.
4.
5.
Conclusion: (Answer ALL of the following question or statements.) Analyze and summarize your results. (5-10 sentences)Relate back to your hypothesis, was it correct or wrong? (1-2 sentences)What did you learn? (1-2 sentences)What would you do differently next time? (1-2 sentences)
