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Blastocyst Embryonic Development - Anatomy & Physiology (view source)
Revision as of 14:23, 3 July 2008
, 14:23, 3 July 2008→Pre-Implantation Development
* Outer cells pump Sodium into the intracellular spaces and water follows osmotically.
* Outer cells pump Sodium into the intracellular spaces and water follows osmotically.
* Fluid begins to accumulate within the Morula.
* Fluid begins to accumulate within the Morula.
** '''Ungulates''': 12 days after fertilization.
** '''Ungulates''': 12 days after fertilization.
* Blastocyst free-floating within the Uterus, totally dependent on the Uterine environment for survival.
* Blastocyst free-floating within the Uterus, totally dependent on the Uterine environment for survival.
[[Image:Pre Implantation Development.jpg|left|thumb|250px|<small><center> Schematic showing Development of the Morula and Blastocyst. (Courtesy of Pathways to Pregnancy and Parturition, Senger)</center></small>]]