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From Embryology
(Created page with "107 cells, Carnegie No. 8663. * Described by Hertig et al. (1954). Uterine. * No zona pellucida (fig. 8). Diameter, 153 x 115 μm (103 x 80 after fixation; 91.6 x 83.3 after se...") |
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* No zona pellucida (fig. 8). Diameter, 153 x 115 μm (103 x 80 after fixation; 91.6 x 83.3 after section- ing); diameters of blastomeres varied from 8 to 21. | * No zona pellucida (fig. 8). Diameter, 153 x 115 μm (103 x 80 after fixation; 91.6 x 83.3 after section- ing); diameters of blastomeres varied from 8 to 21. | ||
* Large blastocystic cavity (58 μm). Embryonic mass composed of 8 cells: epiblastic, hypoblastic, and a presumed primordial germ cell (Hertig, 1968). | * Large blastocystic cavity (58 μm). Embryonic mass composed of 8 cells: epiblastic, hypoblastic, and a presumed primordial germ cell (Hertig, 1968). | ||
* Believed to be about 41⁄2 days old. Khvatov (1967), without further elaboration, claimed: “according to photographs, should be of the male sex.” Smith (1970, fig. 15), without further justification, claimed that a cytoplasmic | * Believed to be about 41⁄2 days old. Khvatov (1967), without further elaboration, claimed: “according to photographs, should be of the male sex.” Smith (1970, fig. 15), without further justification, claimed that a cytoplasmic vauole was “the first indication toward an amniotic space.” | ||
http://nmhm.washingtondc.museum/collections/hdac/Agreement_Policies.htm | |||
The raw data, which will be copy right free, may be made available to all legitimate researchers and students. We will acknowledge the generation of the images in any distributed form and request that the user do so as well. | |||
Latest revision as of 19:03, 25 September 2011
107 cells, Carnegie No. 8663.
- Described by Hertig et al. (1954). Uterine.
- No zona pellucida (fig. 8). Diameter, 153 x 115 μm (103 x 80 after fixation; 91.6 x 83.3 after section- ing); diameters of blastomeres varied from 8 to 21.
- Large blastocystic cavity (58 μm). Embryonic mass composed of 8 cells: epiblastic, hypoblastic, and a presumed primordial germ cell (Hertig, 1968).
- Believed to be about 41⁄2 days old. Khvatov (1967), without further elaboration, claimed: “according to photographs, should be of the male sex.” Smith (1970, fig. 15), without further justification, claimed that a cytoplasmic vauole was “the first indication toward an amniotic space.”
http://nmhm.washingtondc.museum/collections/hdac/Agreement_Policies.htm
The raw data, which will be copy right free, may be made available to all legitimate researchers and students. We will acknowledge the generation of the images in any distributed form and request that the user do so as well.
