File:Stage19 bf16.jpg

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Hill Collection Embryo

  • Embryo No.3323 intact chorion. CRL 16.5mm.
  • Embryo left lateral view inside intact amniotic sac and attached chorionic villi of the developing placenta.
  • The embryo surface features appears to be approximately Carnegie stage 19 embryo.
  • Same Embryo without amnionic sac.


Links: Embryo with amnionic sac | Embryo without amnionic sac | Hill Collection | Carnegie stage 19


Stage 19 General Information

  • Week 7, 48 - 51 days, 16 - 18 mm
  • Ectoderm: sensory placodes, lens pit, otocyst, nasal pits moved ventrally, fourth ventricle of brain
  • Mesoderm: heart prominence, ossification continues
  • Head: forebrain, eye, external acoustic meatus
  • Body: straightening of trunk, heart, liver, umbilical cord
  • Features - eyelid, eye, external acoustic meatus, auricle of external ear, digital ray, wrist, liver prominence


Image source: The images from the Hill Collection (part of the Embryological Collection) are reproduced with the permission of the Museum für Naturkunde, Leibniz Institute for Research on Evolution and Biodiversity. Images are for educational purposes only and must not be reproduced electronically or in writing without permission from the Museum für Naturkunde Berlin.

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Date/TimeThumbnailDimensionsUserComment
current09:37, 10 October 2013Thumbnail for version as of 09:37, 10 October 20131,041 × 1,000 (99 KB)Z8600021 (talk | contribs)==Hill Collection Embryo== Embryo No.3323 intact chorion. CRL 16.5mm. External appearance appears to be approximately Carnegie stage 19 embryo. ===Stage 19 General Information=== * Week 7, 48 - 51 days, 16 - 18 mm * Ectoderm: sensory placodes, lens...