Anatomy & Physiology › Section Y · Reproduction and development › Topic Y.7

The newborn and lactation

At birth a baby must start breathing, reroute its circulation and keep itself warm within minutes. Meanwhile the lactating body switches on a hormonal system that makes milk on demand and passes immune protection to the newborn.

In this topic

  • Birth as a transition
  • The first breath
  • Rewiring the circulation
  • Worked example: an Apgar score
  • Keeping warm
  • Worked example: surface area and heat loss
  • Gut, kidneys and liver
  • The lactating breast and its hormones
  • Suckling and the let-down reflex
  • How milk changes
  • Common mistakes to avoid
  • Key takeaways

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