Q1
Please click on the image where the ILIUM is located. [4] Correct!
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Explanation
The ilium is the superior blade-like half of the os coxa.
Answered - Correct!
Q2
Please click on the image where the PUBIS is located. [4] Correct!
The pubis is the anterior portion of the os coxa.
Answered - Correct!
Q3
Please click on the image where the ISCHIUM is located. [4] Correct!
Explanation
The ischium is the posterior portion of the os coxa.
Three views of the same pubic bone, superior is toward the top; A is ventral, C is dorsal. [13]
Q4
Consider the image above. Based on the traits we just discussed (check again if unsure) which picture shows the ventral surface of the pubic bone?
A
B
B
Explanation
The answer is A. The ventral surface is easily identified because it is rougher than the dorsal surface. Answered - Correct!
Q5
Is there a ventral arc present? Be sure to compare Image A to Figure 10.
A
Yes
B
No
Q6
Considering now image B, is there an ischio-pubic ramus ridge? Remember the ridge is an elevated ridge of bone. Compare Image B to Figure 11.
A
Yes
B
No
Explanation
The answer is B. There is no ridge here.
Q7
Considering the dorsal surface, is there any evidence of dorsal pitting? Compare Image C to Figure 12.
A
Yes
B
No
Explanation
The answer is B. There are no dorsal pits evident.
Q8
Based on your responses to the above, is this a male or female?
A
Male B
Female Explanation
The answer is A. All signs point toward a male sex assessment.
Q9
Which of these two bones exhibit a male form of the sciatic notch? Note the sciatic notch is located on the right side of each bone as depicted in this image. [14]
Compare the sciatic notch to Figure 8.
A A B B
Explanation
The answer is B. Males have a narrower sciatic notch than females.
Q10
Considering the sciatic notch alone, does this appear to be a male or female individual? [15] Compare the sciatic notch to Figure 8.
A
Female B
Hint
The wide sciatic notch suggests this is a female. Q6
Based on the information provided above and what is visible in this image, what sex was this individual? [18]
A
Male
B
Female
Explanation
The answer is B. The mastoid is very small, glabella moderate to small, forehead is vertical and overall cranial vault profile is rounded and smooth.
Q7
Based on the information provided above and what is visible in this image, what sex was this individual? [19]
A
Male B
Female Explanation
The answer is A. This is a massively built skull with thick nuchal crest and glabella.
Q8
Based on the information provided above and what is visible in this image, what sex was this individual? [20]
A
Male
B
Female
Explanation
The answer is B. The mastoid is small, glabella unprojecting and the overall cranial vault is smooth. Note the lack of muscle markings on the cranium
Q9
Consider the following scores for the five key features discussed in this lab (outlined in red).
Considering the trait-specific accuracy data presented in Table 2 by Williams and Rogers (2006), what sex would you assign to this individual? [21]
A
Probable Male B
Probable Female Explanation
Given the data in Williams and Rogers (2006), the score for the mastoid process should be given more weight than the score for the nuchal crest. Therefore, this is a probable male.
Q10
A
Probable Male
B
Probable Female
Hint
Despite the mix of features, the data provided by Williams and Rogers suggest the scores for the mastoid process and glabella should be given greater weight than the scores for the nuchal crest and mental eminence. Therefore, this is a probable female.
Q1
You measure the width of the pelvic inlet and determine its width is 45 cm. Given the distribution of pelvic inlet widths depicted below, does this pelvis likely belong to a male or female?
A
Male
B
Female C
Cannot determine from the information provided Explanation
The answer is B. 45 cm falls well within the female range and outside the male range.
Q2
You measure the height of a canine crown and determine that its height is 18mm. Given the distribution of crown height depicted below, does the canine belong to a male or female individual?
A
Male B
Female
C
Cannot determine from the information provided Explanation
The answer is A. Although there is some overlap between the male and female range, 18 mm falls well within the male range and outside the female range.
Q3
You measure the height of another canine crown and determine that its height is 15mm. Given the distribution of canine crown height depicted below, does the canine belong to a male or female?
A
Male
B
Female
C
Cannot determine from the information provided
Explanation
The answer is C. A 15 mm measurement falls equally within the female and male range. Biological sex can therefore not be determined using this measurement.
Q4
You measure the length of a femur and determine that its length is 40cm. Given the distribution of femoral lengths depicted below, does the femur belong to a male or female?
A
Male B
Female
Q5
You measure the length of a femur and determine that its length is 35cm. Given the distribution of femoral length depicted below, does the femur belong to a male or female?
A
Male
B
Female
C
Cannot determine from the information provided
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Explanation
The crown is covered by the enamel toward the top of the image.
Answered - Correct!
Q2
What types of teeth are these? [11]
A
Incisors
B
Canines
C
Premolars
D
Molars
Explanation
The answer is D. The square shape and presence of 4 cusps indicates this is a molar.
Q3
What tooth type is shown here? [12]
A
Incisors B
Canines
C
Premolars
D
Molars Explanation
The answer is A. These teeth are spatula-shaped and have a linear biting edge.
Q4
Select the area of the tooth associated with the crown. Note this tooth is broken in half showing the enamel, dentin, and pulp chamber. [13]
Correct!
Assigned as Homework
Q9
Which teeth are the first to begin forming (but just by a hair)? Look closely at the bottom line associated with the 17th embryonic week. [18]
A
Incisors B
Canines
C
Molars Explanation
The answer is A. Only the incisors are forming at 17 weeks in utero.
Q10
When the 2nd incisor has a NEARLY complete crown, the first molar is at what stage of dental formation? Make sure to follow the correct line from left to right, beginning with the second incisor. [18]
A
The crown has not started to develop yet
B
The crown is about half complete C
The crown is complete
D
The root is complete
Q11
Which tooth takes the longest to completely form? [18]
A
Incisors
B
Canine C
Molars Explanation [Show Less]