Human Fertilization Movie

Embryology - 3 Dec 2023 Expand to Translate
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<html5media height="500" width="640">File:Human fertilization 01.mp4</html5media>

Click Here to play on mobile device

This is a large movie (7.7 Mb) for a simplified animation from single frames see small small MP4 version.

Approximate Timing of Early Human Events (in vitro)

10 min - components	29 min - spermatozoa penetrates zone pellucida	31 min - spermatozoa penetrates oocyte - fertilization	4 hr - second polar body	8 hr - pronuclei

19 hr 35 min - pronuclei fusion	22 hr - first mitosis	23 hr - two blastomeres	35 hr - second mitosis	37 hr - four blastomeres
See also clock in lower righthand corner for the approximate timing of events.
Links: Human Fertilization Movie		Reference: PMID 22695746 J Assist Reprod Genet.

Movie kindly contributed by Prof Yasuyuki Mio, Clinical Professor, Tottori University, Japan.

Springer Open Access This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. SpringerOpen creative commons 2 | Open Choice creative commons 4 | Open Access Factsheet (pdf, 96 kB)

Supplementary Video 1 - original video (13Mb, mpg) has been resized and relabelled.