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Examples
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This is termed the proamniotic area, and is the region where the proamnion is developed; in man, however, a proamnion is apparently never formed.
bilby commented on the word proamnion
"A second region where the mesoderm is absent, at least for a time, is that immediately in front of the pericardial area. This is termed the proamniotic area, and is the region where the proamnion is developed; in man, however, a proamnion is apparently never formed."
- Henry Gray, 'Anatomy of the Human Body', 1918.
September 20, 2009