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Z 422
Comparative Anatomy
| Term | Definition |
|---|---|
| Amnion | The part of an egg that comes from the somatopleure (outside) |
| Chorion | The part of an egg that comes from the somatopleure (inside) |
| Allantois | The part of an egg that comes from the splanchnopleure |
| Somatopleure | Combination of somatic mesoderm and ectoderm |
| Splanchnopleure | Combination of splanchnic mesoderm and endoderm |
| Peramorphosis | Exaggerated development of somatic cells |
| Paedomorphosis | Suppressed development of somatic cells |
| Progenesis | Growth stops at an early age; animal still becomes sexually mature |
| Neoteny | Features grow at a slower rate |
| Postdisplacement | Feature appears late in development and does not reach adult form by the end of maturation |
| Hypermorphosis | Growth of parts extends beyond the normal growth |
| Acceleration | Growth occurs faster than normal growth rate |
| Predisplacement | Growth is more advanced in its development |
| Hyomandibula | Bone that becomes the stapes in mammals |
| Articular | Bone that becomes the malleus in mammals |
| Quadrate | Bone that becomes the incus in mammals |