03/13/2024
Did you know that milk does not just come out of 1 hole in the ni**le?...
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Did you know that milk does not just come out of 1 hole in the ni**le?
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Your ni**les have anywhere from 4 โ18 lactiferous duct openings where milk emerges from the ni**le.
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These lactiferous ducts, begin at the ni**le, then branch into smaller ducts, and end in the terminal duct lobular unit (or lobule).
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There may be milk resting in these lactiferous ducts, but to applying negative pressure isnโt enough to cause the milk to flow to the baby.
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The milk let-down reflex, also called the milk ejection reflex, permits the suckling infant to obtain milk. This reflex is caused by the baby suckling.
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Your baby triggers tiny nerves in the ni**le.
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These nerves cause hormones to be released into your bloodstream.
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One of these hormones, called Prolactin, acts on the milk-making tissues.
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The other hormone, Oxytocin is released from your pituitary gland in your brain which then causes the breast to push out or โlet downโ the milk.
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The let-down reflex makes the milk available to your baby.
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Cells around the alveoli contract and squeeze out the milk, pushing it down the ducts towards the ni**le.
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Oxytocin also makes the milk ducts widen, making it easier for the milk to flow down them.
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The let-down reflex can happen in other ways besides your baby suckling. Neurons can also be triggered by higher brain centers, so that the mere sight of a baby or hearing a baby cry is often sufficient to stimulate milk let-down.
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โItโs important to also know that the opposite can happen. Stressful conditions may inhibit oxytocin secretion, preventing the suckling infant from obtaining milk even though the breast is full.
-Love,
Flor Cruz
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