Term
|
Definition
1. Release of Ca 2+
2. Cortical Rupture
3. Influx of Na+ into Cytoplasm
4. Reorganization of Cytoplasm
5. Completion of Meiosis by Egg
6. Efflux of H+ Ions (increase pH)
7. Increase in Metabolism |
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Term
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Definition
| Hardening of Perivitelline Space/ Zona Pellucida (slow block to polyspermy) |
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Term
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Definition
| Change in Egg Membrane Potential (fast block to polyspermy) |
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Term
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Definition
All female (male pronucleus from Jeffersonian degernerates)
**Parthenogenesis |
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Term
| Grey Crescent of Frog becomes |
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Definition
| chordamesoderm and notochord |
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Term
| Totipotent stem cells can form |
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Definition
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Term
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Definition
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Term
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Definition
| Unequal holoblastic (due to yolk) |
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Term
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Definition
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Term
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Definition
| isolechithal, oligolechithal, microlechithal |
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Term
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Definition
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Term
| Bird, Reptile and Bony Fish eggs are |
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Definition
| Polylechital or Megalechital. |
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Term
| Compaction is mediated by |
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Definition
Cadherins and Actin
- E-cadherin (Uvomorulin) |
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Term
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Definition
| totipotent and can form the whole embryo. |
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Term
| Primitive streak is equivalent to |
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Definition
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Term
| Primitive streak forms by |
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Definition
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Term
| 1st wave of henson's node ingression forms... |
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Definition
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Term
| 2nd wave of henson's node ingression forms |
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Definition
| head (prechordal) mesoderm) |
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Term
| 3rd wave of Henson's node ingression forms |
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Definition
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Term
| 1st wave of Primitive Groove ingression forms |
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Definition
| the rest of the embryonic endoderm |
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Term
| 2nd wave of primitive groove ingression forms the |
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Definition
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Term
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Definition
- g. grandfather of embryology
-killed one cell in amphibians (but still connected)... only have of embryo |
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Term
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Definition
| separated sea urchin cells and both formed complete larvae. |
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Term
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Definition
separated frog cells... complete larvae
** Cells of 1st 2 blastomeres are totipotent |
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Term
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Definition
| the ability of one tissue to influence the fate of nearby cells, presumbaly by a chemical signal. |
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Term
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Definition
| Gray Crescent necessary for dev. in salamanders. |
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Term
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Definition
| Transplanted cells of dorsal lip to ventral lip... turned non-neural ectoderm to neural ectoderm. (Siamese twins) |
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Term
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Definition
| a substance secreted by one group of cells that influences the fate of another groups (induction) |
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Term
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Definition
hanging drop experiments.
CONTACT NOT NECESSARY |
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Term
| Masked Morphogen is stored in |
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Definition
| membrane-bound vesicles (ethanol destroys vesicles) |
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Term
| Dorsal Lip of Blastopore is also called |
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Definition
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Term
| Bone Morphogenic Protein- 4 (Bmf-4) |
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Definition
| induces ectoderm to become epidermis (default pathway is neural) |
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Term
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Definition
secreted by Dorsal Spemann Organizer
- Prevent BMP from binding and causing ectoderm to become epidermis>>> cells become neural |
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Term
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Definition
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Term
| Seroaminiotic fold form ____ and are made of _____ |
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Definition
| amnion and chorion, ex. em. somatopleure |
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