@Maddy70 the correct terminology is very important in medical contexts, including women being able to visualise and name their own body parts in an unconfused way in order to know what they need and to describe their problems (and understand information given to them including public health information). But I would also argue that anyone who has sexual relationships with women should seek to have a good understanding of their sexual organs. And that people who have responsibility for making policies which affect women's reproductive health and their rights should be compelled to educate themselves too.
If someone wants to call their vulva a foof or whatever, I have absolutely no problem with that as it is clearly a euphemism, and the doctor or nurse would take steps to clarify what they meant. I myself use willy and pussy at times (although not in medical settings!).
I assume if Lammy has three children and doesn't know what a cervix is then he wasn't present at his wife's labour or the birth of any of the children? Otherwise what would he have imagined it to mean when a midwife said "5cm dilated" etc (or perhaps he just didn't care, very possible). (If she had three caesereans then I guess I would judge him slightly differently).
My 80 year old father most likely doesn't know what a cervix is but most of the people currently failing to understand basic anatomy, biology and genetics aren't 80.