Today’s tutorial covers the events that occur during gametogenesis, the formation of sperm and oocytes.
Table of Contents: Time Stamps
0:00 Intro
0:17 Big life cycle events
1:16 Primordial germ cells (PGCs)
3:45 PGC migration failure and mutation
4:05 Teratomas
5:13 Spermatogenesis
8:44 Cell division in spermatogenesis
10:09 Oogenesis and mitotic arrest
12:32 Timing of oogenesis
13:54 Importance of the oocyte cytoplasm
15:02 Gametogenesis summary
17:36 Monosomy (Turner Syndrome)
18:18 Trisomy (Downs Syndrome)
19:10 Trisomy (Klinefelter Syndrome)
Acknowledgements:
Images:
Slide 4: PGC movie from: Hill, M.A. (2020, June 30) Embryology Primordial Germ Cell Migration Movie.
https://embryology.med.unsw.edu.au/em...
Slide 3, 4: Images modified from embryology.ch
Slide 6: Sacrococcygeal teratoma image is from Lubala T et.al. (2015) Int Med Case Rep. Gross teratoma case courtesy of Ed Uthman, Radiopaedia.org, rID: 77604. S
Slide 10: Images modified from Grieve and Friedman, 2015
Slides 13, 17: Images used under license from Shutterstock.
All other cartoons created using Biorender
All histology images from University of Utah
Histology Wizard created by Miekan Stonhill
Animations by Jessika Raisor: Twitter @jessika_arts, Website jessikaraisor.com
Embryo Wizard created by Coni Hoerndli: Website www.chsciencedesign.com