Anatom3DLactiferous sinuses
Sinus lactiferi · Mlékové splavy
Reproductive system
Looks like
Small widenings of each milk duct just behind the areola, before the duct narrows again to open on the nipple.
What it does
Hold milk ready to be drawn out by the baby's latch and suckling.
Keeping it well
A baby needs to take the areola, not only the nipple, into the mouth to compress them; a poor latch causes sore, cracked nipples and less milk, which a midwife or feeding specialist can correct.