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PBS - Scientific American Frontiers I A Different Way to Heal? I Teaching Guide I Backbones - Chicken -Style I PDFEDUCATOR NOTE:Cooking and preparation should be performed by the instructor. The bonesshould not leave the classroom since they can present a choking hazard todogs and other animals.Instructor's Preparation1. Obtain a chicken neck for each group of two students from a localbutcher or meat section of a large market.2. Prior to class, place the necks in boiling water for about 40 minutes.3. Once they have been boiled, place the necks in a large pan and allowthem to cool.Proceedure1. Work in groups of two. Spread out scrap newspaper to protect thedesktop during this activity. Put on a pair of rubber gloves.2. The instructor will supply you with a cooked and cooled chicken neck.Carefully begin to remove the soft tissue and muscle from around thebones. Do not pull the tissue too hard, since excessive force willdisassemble the neck. Examine this item closely while you work, thenanswer Question #1 below.3. Thread a section of bell wire through the hole within each vertebra tokeep these bones together and in order.4. Once the meat has been removed, seal the bones in a Ziploc bag. Labelthe container with your names and give it to your instructor. Theinstructor will place the container in the refrigerator.5. Clean up your station and dispose of the chicken tissue according toyour teacher's instructions. Clean and wash your hands well.6. Wait five days.7. After five days, cover your desktop with scrap newspaper. Put onanother pair of rubber gloves. Over the classroom sink, remove thechicken bones from the bag and rinse the bones thoroughly.8. Have the instructor place the bones in a kitchen oven (convection) at200 degrees for about one hour.9. Remove the bones from the oven and let them cool off. Scrape off anyremaining tissue. You may need to use a plastic knife to reach any meatleft in the bone recesses.10. Once the vertebrae have been dried, press them together. Observe howthey move and connect with each other. Note the points of contact.Move and bend the series of bones. Observe how the structure of thebackbone can offer a strong but flexible column. Draw a diagram of thisstructure.11. When you have completed these observations and the questions below,clean up your station and dispose of the bones and waste materialaccording to your teacher's instructions. Clean and wash your handswell.Questions
PBS - Scientific American Frontiers I A Different Way to Heal? I Teaching Guide I Backbones - Chicken -Style I PDF1. What types of tissues and structures could be identified in the raw necksection?2. How many vertebrae were found in the neck?3. How are the neck bones adapted to protect the delicate spinal cord?4. How are the neck bones adapted to allow flexibility of the spinalcolumn?5. Compare and contrast the role and structure of chicken and human neckbones. Check out the comparative anatomy Web site below for moreinformation.Learn more about comparative anatomy here:http://www.biology.eku.edu/RITCHISO/342notes2.htmEXTENSIONSKnow Your VertebraeAlthough they have minor differences in appearance, human and chickenvertebrae share several common characteristics. Use a classroom model (orthe bones you obtained from your chicken neck) along with print andelectronic resources to find and identify the following bone parts: spine,vertebral foramen, centrum, lamina, and pedicle. Draw a diagram and labelthese parts.Source of IllnessAccording to Daniel Palmer, the founder of chiropractic, most illnesses can betraced to a pinched nerve caused by a misaligned spinal column. Apply whatyou know. Use critical thinking strategies to examine and critique thischiropractic connection to infectious disorders such as measles, flu, and AIDS.Let Them Be?Some people believe that as long as chiropractors are not harming patients,they should be allowed to practice. Others feel that a belief in a scientificallyunsubstantiated therapy might dissuade an individual from seeking anaccepted medical procedure or treatment. Still others believe that the risk ofdamage to neck arteries by chiropractors is sufficient to stop all such practices.What do you think? Does the government have a responsibility to curbunfounded claims? Why or why not? Who should decide whether a therapyworks or doesn't work? What criteria should be used in this evaluation?WEB CONNECTIONHuman Bones and Muscleshttp://pc65.frontier.osrhe.edu/hs/science/bbones.htmThis site provides great detail about human anatomy.The Skeleton of the Chickenhttp://137.222.110.150/calnet/chickenskele/chickenskele.htm
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