Maybe blood vessels that are part of the clitoris? Clitoris is not just one little knob on the vulva but a rather pronounced organ that has erections in tissue that stretches deeper into the pelvis, very alike the male erective tissues (clitoris and penis have a lot in common and evolve from the same cell cluster in embryo).
Even parts of modern medicine is struggling with the reality of the “erecting” clitoris (as they do with a lot of female medicine). In that aspect this drawing would be rather modern and sort of accurate.
Maybe blood vessels that are part of the clitoris? Clitoris is not just one little knob on the vulva but a rather pronounced organ that has erections in tissue that stretches deeper into the pelvis, very alike the male erective tissues (clitoris and penis have a lot in common and evolve from the same cell cluster in embryo).
Even parts of modern medicine is struggling with the reality of the “erecting” clitoris (as they do with a lot of female medicine). In that aspect this drawing would be rather modern and sort of accurate.