It is quite funny how this mentality is being perpetuated by modern "science." Many scientists contend that women have smaller brains than men, and this is only because the accepted anatomical drawings (predominantly drawn by Vesalius) of our day have illustrated men in a particular, arbitrary fashion, that is unfounded upon real, scientific evidence. Furthermore, due to the illustrations of larger pelvic areas, analysts of these drawings reaffirm their belief that the only purpose of women is childbearing. With smaller brains and larger pelvic areas in illustrative form, these representations influence contemporary mentality; thus, women are assumed to be senseless creatures solely created with the purpose of propagating the human species.
Vesalius presents a dichotomy between the anatomy of the two sexes (based on his arbitrary conceptions) in his illustrations,
below is such an example of his drawings:
While one would assume that progressive scientific thinking would correlate to progressive thinking in terms of gender and stereotypes, on the contrary, modern science is perpetuating these traditional ideas about women and gender roles.