Pelvis Shape: A Distinct Difference between Genders
When it comes to the shape of the pelvis, there is a notable contrast between males and females. Although both the male and female pelvis are proportionate to the skeleton, their shapes differ significantly. One of the key dissimilarities lies in the width of the pubic arch, with the female pelvis having a wider arch compared to its male counterpart. Additionally, the female pelvis boasts a smaller hip joint and a wider, shorter sacrum.
While these distinctions may not be classified as primary sex characteristics, they play a crucial role in facilitating childbirth and supporting the growth and development of offspring. The unique shape of the female pelvis is specifically adapted to accommodate the carrying and birthing of babies.
The Difference in Muscle Mass between Men and Women
Research indicates that there is a notable disparity in skeletal muscle mass between men and women, particularly in the upper extremities, even after accounting for differences in height and weight. Although the strength of muscle fibers is relatively similar between genders, men generally possess a greater overall muscle mass, which translates to a higher quantity of muscle fibers. On the other hand, women tend to convert more calories into fat.