ACTIVITY 2: SEX DETERMINATION FROM PELVIC MORPHOLOGY


Help Tom McCune determine the sex of the skeleton by labeling the specific parts of the pelvic girdle and circling their characteristics on the chart below; then answer the question that follows and provide your reasoning.

Sex Characteristics of the Pelvis

Feature Male Female
A. obturator foramen shape large, ovoid triangular
B. acetabulum size large small
C.subpubic angle V-shaped U-shaped
D.sciatic notch shape narrow, deep wide
E. ilium shape high, vertical wide
F. pelvic inlet shape heart-shaped circular
G. sacrum shape long, narrow short, wide


What is the sex of the unknown pelvic bone?

Record observations that support this determination:




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