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PIMA BIO130

CHP8 Skeletal; Comparison of Male and Female Skeletons

QuestionAnswer
General form (Males) Bones heavier and thicker/ Muscle attachment sites more massive/ Joint surfaces relatively large
General form (Females) Bones lighter and thinner/ Muscle attachment sites less distinct/ Joint surface relatively small
Skull (Male) Forehead shorter vertically/ Mandible and maxillae relatively larger/ Facial area more pronounced/ Processes more prominent
Skull (Female) Forehead more elongated vertically/ Mandible and maxillae relatively smaller/ Facial area rounder, with less pronounced features/ Processes less pronounced
Pelvic Cavity (Males) Narrower in all dimensions/ Deeper/ Pelvic outlet relatively small
Pelvic Cavity (Females) Wider in all dimensions/ Shorter and roomier/ Pelvic outlet relatively large
Sacrum (Males) Long, narrow, with a smooth concavity (sacral curvature); sacral promontory more pronounced
Sacrum (Females) Short, wide, flat concavity more pronounced in a posterior direction; sacral promontory less pronounced
Coccyx (Males) Less movable
Coccyx (Females) More movable and follows the posterior direction of the sacral curvature
Pubic arch (Males) 60-90 degree angle
Pubic arch (Female) 90-120 degree angle
Pubic symphysis (Male) Relatively deep
Pubic symphysis (Female) Relatively shallow
Ischial spine, ischial tuberosity, and anterior superior iliac spine (Males) Turned more inward
Ischial spine, ischial tuberosity, and anterior superior iliac spine (Females) Turned more outward and further apart
Greater sciatic notch (Male) Narrow
Greater sciatic notch (Females) Wide
Created by: Jgiron6994