Cross Section of a Lactating Breast The milk is produced in milk producing cells. A portion
of the milk continuously comes down the ducts and collects in the sinuses. When the
cells are stimulated, they expel additional milk into the duct system (milk ejection
reflex).
Cross Section of a Baby Nursing
The entire areola and nipple form a "teat" inside the baby's
mouth, reaching all the way back toward her throat. Note how baby's tongue
completely covers her lower gum (or teeth), with the nipple far back in the mouth where it
cannot be damaged.
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