Part 9 · Reproductive Physiology
Same concept, other depth: Foundation →
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Fertilisation (ampulla, usually within 24 h of ovulation) → cleavage → morula (day 3–4) → blastocyst enters the uterus (~day 4–5) → hatching → implantation (apposition, adhesion, invasion) ~days 6–10 post‑fertilisation, during the progesterone‑dependent window of implantation.
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