The channel in the cervix is lined with cells and glands that secrete mucus. This mucus is thick and impenetrable to sperm until eventually just ahead of ovulation.Seperti protes sebelumnya terhadap retouching fotografi alat kelamin, para juru kampanyenya melihat karakterisasi tubuh wanita sebagai seksual dan ofensif - ketika pria telanjang dada di