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A recently obtained mature ovum. |
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A mature ovum prepared for ICSI. |
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Intra-cytoplasmic sperm injection. Observe the spermatozoon in the pipette. |
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Intracytoplasmic sperm injection. |
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Intracytoplasmic sperm injection. |
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The fertilised ovum (day +1 post-puncture and extraction of ova). |
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Ovum about to separate into two cells (day +1). |
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Embryos at the stage of separation into four cells (day +2). |
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Embryos at the stage of separation into eight cells (day +3). |
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Embryo with 14 cells (day +4). |
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Embryos at morula stage (days +4). |
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Advanced embryos at expansion stage (day +5). |
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Fully expanded embryo. Approximate number of cells: 70-90. Day +5. |
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Hatched embryo after breaking its protective capsule (zona pellucida). Day +6. |
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Hatched embryo (day +6). |
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Hatched embryo. The cell bud (in the middle of the photograph) will lead to the embryo itself. |
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Immature ovum at prophase I. |
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Embryo at 2-cell separation stage. |
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