First of all - very cool that they were able to image this and work out the mechanical mechanism in such detail.
Second - the rupture event looks so violent but iiuc it’s actually highly controlled:
- the rupture site is thinned early in the ovulation process
- the expansion step pulls in fluid to the ovary (builds internal pressure)
- the contraction phase restricts the cell volume (which also builds internal pressure)
- the oocyte is launched out of the cell at a relatively high speed
Separately, a woman at about the same time actually volunteered to undergo a surgery specifically to observe the phenomenon on video, also by laparoscopy.
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[ 4.8 ms ] story [ 44.5 ms ] thread> Images were captured using a combination of confocal and two-photon microscopy, live imaging isolated mouse ovarian follicles.
Second - the rupture event looks so violent but iiuc it’s actually highly controlled: - the rupture site is thinned early in the ovulation process - the expansion step pulls in fluid to the ovary (builds internal pressure) - the contraction phase restricts the cell volume (which also builds internal pressure) - the oocyte is launched out of the cell at a relatively high speed
http://news.bbc.co.uk/2/hi/health/7447942.stm, and https://www.nature.com/articles/453965a.pdf
Separately, a woman at about the same time actually volunteered to undergo a surgery specifically to observe the phenomenon on video, also by laparoscopy.
https://www.youtube.com/watch?v=2-VKgdhfNpY
There are plenty of videos on YouTube that are clearly sexual in nature and publicly available to people of all ages.
Searching for the video ID (2-VKgdhfNpY) on Google Images returns obvious images of a laparoscopy.
And once a mouse is conceived, it goes through 28 Theiler states.
https://www.ncbi.nlm.nih.gov/projects/Jax_GSA/IMGC2005_Works...
Nature orchestrates things perfectly.