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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 |