[Scanning microscopy of the early stages of embryonic development of baboons (Papio cynocephalus): oocyte, penetration of the zona pellucida, and morula]. Academic Article uri icon

abstract

  • The surface of ovarian oocytes is evenly covered with finger-like microvilli about 1 micron long. Penetration of capcitated spermatozoa in the zona pellucida apparently occurs after acrosome reaction and though a narrow slitmmorulae are constituted of rounded blastomeres, usually of similar size and microvillous covering. A few blastomeres may be smaller than others, probably as a result of faster mitotic rate in one of the blastomeres compared to adjacent ones. Microvilli are numerous in the interblastomeric furrows where junctional ridges are not observed at the 30-40 cell stage.

published proceedings

  • C R Acad Hebd Seances Acad Sci D

author list (cited authors)

  • Flchon, J. E., Kraemer, D. C., & Hafez, E. S.

citation count

  • 1

complete list of authors

  • Fléchon, JE||Kraemer, DC||Hafez, ES

publication date

  • January 1977