On a field trip you discover a skeleton with the following characteristics: the acetabulum is directed laterally,the ischial spine points medially,and the angle inferior to the pubic symphysis is less than 90 degrees.The long bones of the arms and legs are relatively light and show epiphyseal plates.This skeleton is probably from
A)a young male.
B)a young female.
C)an elderly male.
D)an elderly female.
E)cannot tell on the basis of this information

Question

Quizplus · Accepted Answer

The acetabulum directed laterally and the ischial spine pointing medially are typical of a male pelvis. The angle inferior to the pubic symphysis being less than 90 degrees also suggests a male. The presence of epiphyseal plates indicates that the individual is young, as these plates close after growth is complete. Therefore, the skeleton is likely from a young male.

On a Field Trip You Discover a Skeleton with the Following