Carnegie stage 11: Difference between revisions
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| [[File:Stage11_sem13.jpg|frame| | | [[File:Stage11_sem13.jpg|frame|200px|This is a scanning EM of the embryo dorsal view showing the neural tube closing with open neuropores and the paired somites visible through the thin ectoderm. Features: surface ectoderm, neural tube, cranial (anterior) neuropore, caudal (posterior) neuropore, somites, heart, cut edge of amnion, 24 days, 13 somite pairs]] | ||
| [[File:Stage11_sem11c.jpg|frame|This is a scanning EM of the embryo fractured close to the midline to show the hindbrain rhombomeres. Features: surface ectoderm, neural tube, hindbrain rhombomeres, forebrain, buccopharyngeal membrane, yolk sac, 25 days, 19 somite pairs]] | | [[File:Stage11_sem11c.jpg|frame|This is a scanning EM of the embryo fractured close to the midline to show the hindbrain rhombomeres. Features: surface ectoderm, neural tube, hindbrain rhombomeres, forebrain, buccopharyngeal membrane, yolk sac, 25 days, 19 somite pairs]] | ||
| [[File:Stage11_sem20c.jpg|frame|This is a scanning EM of the embryo superior dorsal view showing the paired otic placodes sinking into the surface at the level of the hindbrain. Features: surface ectoderm, paired otic placodes, pharyngeal arches heart, 25 days, 19 somite pairs]] | | [[File:Stage11_sem20c.jpg|frame|This is a scanning EM of the embryo superior dorsal view showing the paired otic placodes sinking into the surface at the level of the hindbrain. Features: surface ectoderm, paired otic placodes, pharyngeal arches heart, 25 days, 19 somite pairs]] |
Revision as of 16:31, 26 April 2013
Introduction
Features
rostral neuropore closing, forebrain, neural tube in region of developing spinal cord, somites, caudal neuropore, connecting stalk, amnion
Identify: heart, rostral (cranial, anterior) neuropore closing, forebrain, neural tube in region of developing spinal cord, somites, caudal neuropore, connecting stalk, amnion
- Links: Week 4 | Somitogenesis | Placodes | Lecture - Mesoderm | Lecture - Ectoderm | Lecture - Early Vascular | Science Practical | Category:Carnegie Stage 11 | Stage 12
- Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline
Bright Field
Embryo dorsal view | Embryo ventral with 1 mm scale bar | Embryo lateral view |
Select image below to open full-size.
- Stage 11 Images: BF1 - dorsal view | BF2 - lateral view | BF3 - ventral with scale bar | BF4 - ventral view | BF5 - lateral view | BF6 - ventral view | BF7 - Kyoto embryo | BF8 - ventral head | BF9 - ventral head | BF10 - dorsal neural | BF11 - ventral embryo and yolk sac | Scanning EM embryo | Carnegie stage 11
Scanning EM
Buccopharyngeal Membrane
Neuropores
Neural Crest
Scanning EM showing low power image of whole embryo and region shown in detail box right of neural crest cells.
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Image Source: Scanning electron micrographs of the Carnegie stages of the early human embryos are reproduced with the permission of Prof Kathy Sulik, from embryos collected by Dr. Vekemans and Tania Attié-Bitach. Images are for educational purposes only and cannot be reproduced electronically or in writing without permission.
Kyoto Collection
View: This is a dorsolateral view of embryo. Amniotic membrane removed.
Image source: Embryology page Created: 19.03.1999
Image source: The Kyoto Collection images are reproduced with the permission of Prof. Kohei Shiota and Prof. Shigehito Yamada, Anatomy and Developmental Biology, Kyoto University Graduate School of Medicine, Kyoto, Japan for educational purposes only and cannot be reproduced electronically or in writing without permission.
Carnegie Collection
iBook - Carnegie Embryos | |
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Histology
Stage 11 histology links: optic pit | optic vesicle-hindbrain | neural tube roof plate 1 | neural tube roof plate 2
Historic Embryology
- Historic Papers: 13-14 Somites | Carnegie Institution No.131 A human embryo with 14 pairs of somites | Carnegie Institution No.124 A human embryo with 17 pairs of somites | Carnegie Institution No.72 Description of a human embryo having twenty paired somites | Text-Book of Embryology (1921) Fig. 84
Additional Images
- Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline
Cite this page: Hill, M.A. (2024, June 15) Embryology Carnegie stage 11. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_11
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G