Assignment:
I. Bone Identification Discussion Questions:
1. Suppose you were diagnosed with a stress fracture of your radius bone. What part of your body has been broken?
2. Archaeologists have discovered the scapula, ulna and metacarpals of an ancient human skeleton. What part of the human body have they found?
3. You may have noticed that the bones you identified come in a variety of different shapes. Why do you think some bones such as humerus and femur have rounded ends? Why do you think other bones such as vertebrae and carpals have flat sides?
4. Compare the bones of the upper limbs with the bones of the lower limbs. In what ways are the shapes and arrangements of the bones similar? How are they different? Why is this important?
5. A box of unidentified bones has arrived in your laboratory. Inside the box, there are two bags labeled #1 Appendicular Skeleton and #2 Axial Skeleton. List the bones you would expect to find in each bag. Give the # of bones and the major types of each one such as 29 bones in skull (8 cranial, etc.). This information is listed in the lecture notes for this week.
II. Investigation: Can you estimate a person's height from the length of their bones?
Table 1
Your measured and calculated values
Bonus Points Measurements: If you have been vaccinated for the COVID 19 virus and have a friend or family member that has also been vaccinated, please try and do these measurements for two other vaccinated people (5 points/person) if you can do so safely.
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Actual Height (cm)
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Femur Length (cm)
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Actual Height (cm)
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Calculated Height (cm)
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Tibia Length (cm)
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Calculated Height (cm)
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Ulna Length (cm)
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Calculated Height (cm)
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Table 2
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Bone #
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Bone Type
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Length (cm)
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Race
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Sex
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Calculated Height Range (cm)
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1
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Humerus
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38.2
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Caucasian
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Male
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2
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Femur
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44.0
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African- American
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Female
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|
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3
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Ulna
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25.4
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Caucasian
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Male
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|
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4
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Femur
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52.4
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Caucasian
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Male
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|
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5
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Femur
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43.9
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African-American
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Female
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|
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6
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Tibia
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45.7
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Caucasian
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Male
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Finally, answer these questions based on the information given in the Table taken from the lab exercise:
1. Which bones do you think might be the same person? Explain why you believe this.
2. What is the minimum number of bodies buried at this site?
3. What is the maximum number of bodies buried at this site? Explain your reasoning.
4. Consider a case where two females have the same femur length. Would you expect those females to be the exact same height? Why or why not?
5. Consider your calculated heights and your actual height. Are they within the range that was expected?
6. Suggest a reason for why a person's calculated height might not be accurate.
Attachment:- Human Skeletal System.rar