Friday, Jun 14th

Last updateSun, 21 Feb 2021 9am

Font Size



G Nikas2

Photographs of Embryo Development


oocyte The oocyte/egg-
Surrounded by a protein coat called the Zona Pellucida.
pro The 1st Day-
The fertilised egg contains 2 pro-nuclei: one containing the genetic material from the mother the other containing the genetic material from the father.
two-cell 2nd Day-
The fertilised egg divides into 2 equal  cells.
Then, a second division producing 4 identical cells.
day-three 3rd Day-
The embryo now becomes 8 cells~72 ώρες after ferilisation.
blastocyst 5th/6th Day-         
The blastocyst is formed. The cells become differentiated.



Until now the embryo did not increase in size, but at the blastocyst stage a increase in size starts.

The swollen blastocyst begins to herniate from its protein shell. (hatching).

hatching The Hatched Blastocyst-the final stage before implantation., completely free from the zona pellucida



  • Fertilized oocyte

    The fertilized oocyte has 2 pro-nuclei (one containing the chromosomes from the male –carried by the sperm...

  • Spermatozoa

    How spermatozoa is prepared for IUI & IVF Density gradient centrifugation ( formally known as the percoll gradient )

  • Human Oocyte

    All eggs are not the same! Have you heared your doc say "immature eggs", "poor eggs" etc?

  • Four Cell Embryo

    How embryos are usually graded is by morphological observation...

  • Eight Cell Embryo

    The embryologist observes the development in vitro from a single cell unitil the embryo-transfer...

  • Blastocyst

    Blastocyst develop 5 or 6 days after fertilization...

  • Hatching Blastocyst

    Before implantation the blastocyst has to escape its outer coat

  • Apoptosis of Sperm cells
  • Technique IMSI

    Pre-selection of spermatozoa for ICSI with higher magnif....

  • Technique IMSI 2
  • Micromanipulation
  • Time Lapse Monitoring Of Embryos

    Remote monitoring embryos avoids the practice of removing them from their incubation...

  • Karyotype

    The study of your chromosomes

  • IVF Lab

By Autson Web Design