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Forensic anthropologist quiz
Forensic anthropologist quiz
Forensic anthropologist quiz
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This case contains partial remains of an individual discovered in Marin County. Each element shows varying stages of erosion as well as uniform discoloration of the elements (brown). The ribs are severely fragmented. Attached to the occipital on the left side is an attachment of fabric and wood possibly from the burial box. The central incisors and the lateral incisor of the left maxilla are missing. All other teeth are present in the maxilla and the mandible. Neither fibula are present and the right tibia is also missing. Various hand and foot bones are missing. In the vertebral column one thoracic vertebra is missing and another it is fragmented. The skull of the individual expresses mild porosity, especially along the brow ridge and both of the external auditory meatus. The porosity noted earlier on the skull is also present on the innominates and many of the long bones. This porosity is probably due to some sort of taphonomy. Both temporal bones along the squamosal suture are lifting away from the skull. This is also most likely due to some form of taphonomic damage. The following table reflects the cranial measurements that each analyst had taken. An average of these measurements were then calculated in order to determine the most accurate measurements. Each analyst took cranial measurements and the average of each measurement was used in the final calculations necessary to the Giles and Elliot metric analysis. The following calculations are sums of the formulae. According to Giles and Elliot individual CR13304 was calculated to be Male. In order to too be a male according to this method the select cranial measurements must total higher than a sum of 891.12 when placed into a series of formulae. After the sex of the indi... ... middle of paper ... ...rus and the left femur. This could be a result of poor excavation skills. Most elements show signs of root etching, varying in visibility. This erosion varies in severity throughout all of the elements. The left and right femur and the left tibia are peeling due to an unknown cause. Works Cited Trotter, M., Gleser G.C. 1958. A Re-Evaluation of Estimation of Stature Based on Measurements of Stature Taken During Life and of Long Bones After Death. American Journal of Anthropology 16 (1): 79-123. Fully, G. and Pineau, H. 1960. Determination de la Stature au Moyen de Squelette. Annales de Medicine Legale 40:145-154 Giles, E. and Elliot, O 1962. Race Identification from Cranial Measurements. Journal of Forensic Sciences.7: 147-157. Giles, E. and Elliot, O 1963. Sex Determination by Discriminant Function Analysis. American Journal of Physical Anthropology. 21:53-68.
The skeleton had a hideous impact to the community and was predicted by local investigators to be reasonably modern. To get better understanding and avoid confusion, a bone sample was sent to a laboratory in the USA for investigation and analysation using series of scientific
Although the scientific use of anthropometrics in not abused in modern day society, scientists still incorrectly draw conclusions from data and statistics. Many statically fallacies occur where scientists will try and bend the statistics to prove their own personal opinion. For example, a scientist may deem his new invention or product to be 100% successful, but it could have only been tested 5 times. Even though the abuse of anthropometrics has been abandoned, scientific data abuse is still apparent in modern day
In order to begin this lab procedure, the class was first split into lab groups of four. A meter measuring tape was then obtained from the lab materials. One member of the lab group sat on the edge of the table and the other members took turns measuring the circumference in centimeters at the widest part of the calf. The measure was taken by each lab member and recorded in a table. This step was repeated for each lab member in order to gain enough information for the data to be significant. After obtaining the circumference of each group members’ calf, a caliper was used to take the skin-fold thickness on the inside of the lab member’s ...
When comparing quantitative measures such as gravimeter with visual analog scales, the quantitative measures, subjective ratings have a relatively high level of diagnosis sensitivity and specificity (48,49B). This method, however, is preferably used in research field, and is rarely used in clinical practice.
The female features are more outwardly flared hip bones, wider angles where bones meet, and broader sciatic notch. The male pelvis is more heart shaped, and has narrower angles. For a quick identification in the field, a forensic anthropologist will find the notch in the fan-shaped bone of the pelvis and stick their thumb into it. If there's room to wiggle the thumb, then it's a female; if it's a tight fit, it's the skeleton of a man (PBS). Among seven features observed on the pelvic bones, the least reliable single sex indicator was the width of the great sciatic notch, with accuracy of 79.15% (Duric). Sex was correctly estimated by the experienced anthropologist in 100% of individuals using all the pelvic
Feder and Park present a list of traits that are used by paleoanthropologists to distinguish the appearance of skeletal features and characterize these changes over time. Th...
For many years there have been attempts at progression in the area of pre-birth selection of gender but nothing was really successful until about the 1970’s. Beginning in the 1970’s gender selection methods were rarely used and ...
Evidence for this conclusion could be found in all four of the bones. The pelvis had a sub-pubic angle of 100 degrees and a greater sciatic notch with 76 degree angle. Both of these measurements are greater than the minimum angle requirements for it belonging to a female (90 degrees and 68 degrees respectively). It also had a pelvic cavity shape that was noticeably circular and wide as opposed to the heart shaped male pelvis. The skull also had several feminine features including the sharp eye orbit edge, round eye orbit shape, smooth nuchal crest, round and globular frontal bone, and rounded v-shaped mandible. Evidence can also be found in the femur’s length (385mm.) which is under the 405mm. female requirement. Evidence can also be found in the various humerus measurements such as it’s 54.2mm. epicondylar width and it’s 37.5mm. vertical diameter of the numeral head, both of which were significantly closer to the female average than the male average. Out of the nineteen sex determination tests, only two matched male criteria. Ultimately this abundance of affirmative evidence prove that the bones were, in fact,
To do so, the anthropologist examines the overall sturdiness of the bones, as males tend to have larger bones and joint surface...
Sexual dimorphism can be defined as “morphological differences or varied appearances between males and females within the same species,” stated from Webster’s Dictionary. Anthropologists and primatologists study sexual dimorphism for various reasons depending upon, what information is trying to be uncovered. For example, a forensic anthropologist might use sexual dimorphism to try to nail down traits that will allow easier identification of a sex within skeletal and dental remains (Plavcan, 2001). Alternatively, a primate biologist may focus on understanding the causes of sexual dimorphism in primates, and how these relate to the variation in behaviors and ecological structure (Plavcan, 2001).
It’s not everyday that you find some bones in the ground while walking your dog! As a forensic anthropologist who has just found some human remains lying around I would definitely decipher the biological profile, reconstruct the face, and testify in court to identify the unknown person. The job of a forensic anthropologist isn’t always easy, but by using these three steps, it shouldn’t be that tedious and hard.
To begin with, gender must be examined at the basic level of science in regard to physical and biological development of humans. We all understand the physical differences between the male and female gender, but how is our sex actually determined. After conception,
During the early 1900’s, William Sutherland, became fascinated with the design of the human skull. He believed that the bones in the cranium move in relation to each other. Through self-experiment, he was able to feel a certain rhythmic motion of the cerebrospinal fluid, which he called the craniosacral rhythm. (1) Based off of Sutherland’s work, John Upledger, an osteopathic physician, studied the craniosacral rhythm in depth. During 1975-1983, he continued to s...
Forensic dentists have played a major role in the identification of remains in mass disasters, in crime investigations, in ethnic studies, and in the identification of decomposed and disfigured bodies in situations such as fire and car accidents (1). Teeth are considered to be a great form for identification as teeth are mostly composed of enamel. Enamel is the hardest tissue in the body and can withstand extremely harsh conditions (1). Two forms of dental identification of humans exist. These two forms are comparative and when no ante-mortem (before death) dental records are available. The comparative form of identification compares the ante-mortem and post-mortem (after death) dental records (1). Dental records con...
Many factors and components contribute to gender development in individuals. The following paper details four theoretical approaches-biological, interpersonal, cultural, and critical, and the role each play in determination of a human’s gender development. In addition, a brief explication of each theory is most significant as well as the most feasible in regards to gender development.