ASM 275: Lab 16 with correct questions and answers
Q1. First we will identify the bones shown in this image. What bone is indicated here by the box? B. Humerus Q2. Let's keep working to identify. How about this bone? A. Tibia Q3.And how about this grouping of bones? D. Vertebrae Q4. And this grouping?A.Phalanges and Metacarpals Q5. What are these bones? B. Cranial fragments Q6. What about these? Pay attention to the length of the shafts and the shape of the distal epiphyses (toward the bottom of the image). C. Metatarsals Q7. And this group? Again, use online resources if you must. B. Tarsals Q8. Getting there, and what about this group?
- Radius Q9. How about this group? Please note that the three bones are all
- I will tell you these are both from the same person (our 5th person). What accounts for
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complete examples of the same skeletal element. That is they are whole bones, match the shape to comparative resources. D. Patella Q10. It may be difficult to tell for you, but the fragments labeled A and B are both LEFT humeri so we know there are at least two people here. Note the difference in size (see the blown up inset image). What do you think causes this? B. Sex, the one on the right (B.) is female, the one on the left (A.) is male. Q11. Now consider those bones labeled B. and C. We established already that B. likely belongs to an adult female, but what about bone C? The blue lines mark the equivalent portions of the shaft and you see that C. is quite a bit shorter than B. and likely belongs to a third individual. What is missing from the humerus labeled C? C. Both the proximal and distal epiphyses Q12. Given you response to the question above, what indicates humerus B and C belong to different people? A. Differences in age Q13. Now let's compare C to F. You can tell that F is also missing the proximal epiphysis (compare the blue lines) and is a subadult. Also the shaft is about the same size as C. So is this a different person than C (the third person we have identified) or not? Look carefully at the outline of the shaft before making your assessment. A. F is a different person from C Q14. Finally let's look at D and
the small size here? B. These are young children Q15. I have now grouped the elements into similar kinds of bones: long bones, cranial fragments, ribs, vertebrae, etc. and have provided labels for those elements we did NOT ask you to identify already. Please select the box (by clicking directly on the image) associated with the skeletal element that is MOST useful for determining the SEX of the individual (please ignore the fragmentary condition). Note, the correct answer could either be a box previously identified by you or one labelled here. We learned in unit 2 that the pubis provides the most accurate information about the sex of an individual. Q16. Please select the box of the skeletal element that is the SECOND most useful for determining the sex of the individual (again, please ignore the fragmentary condition). Consider what we discussed in unit 2 of the class. Note, the correct answer could either be a box previously identified by you or one labelled here. The cranium and mandible provides the most useful information about skeletal sex AFTER the pelvis. Q17. What sex assessment feature is visible (barely) in the