Carnegie stage 14: Difference between revisions
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Revision as of 15:51, 16 March 2014
Embryology - 14 Jun 2024 Expand to Translate |
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Introduction
Facts
Week 5, 31 - 35 days, 5 - 7 mm
Gestational Age - week 7
View: Lateral view. Amniotic membrane removed.
Events
Ectoderm: sensory placodes, lens pit, otocyst, nasal placode, primary/secondary vesicles, fourth ventricle of brain,
Mesoderm: continued segmentation of paraxial mesoderm (more than 30 somite pairs), heart prominence
Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum
Body: heart, liver, umbilical cord, mesonephric ridge
Limb: upper and lower limb buds
Features
midbrain, nasal placode, lens pit, 1,2,3 pharyngeal arches, fourth ventricle of brain, 1st pharyngeal groove, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord.
Identify: midbrain region, nasal placode, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord.
- Links: Week 5 | Head | Lecture - Limb | Lecture - Gastrointestinal | Lecture - Head Development | Science Practical - Gastrointestinal | Science Practical - Head | Movie - Embryo stage 14 | Category:Carnegie Stage 14 | Stage 15
- 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
Lateral view | |
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Ventral view | |
Scanning EM
Kyoto Collection
Carnegie Collection
- Carnegie stage 14: 6830 left | 1380 left | 7333 left | 6502 left | 5654 left | 4154 left | 4629 right | 7394 right | 6848 left | 7400 right | 7394 left | 1620 left | 7400 left
iBook - Carnegie Embryos | |
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Stage 14 Embryo Movie
Stage 14 Model |
Page | Play |
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
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.
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.
Cite this page: Hill, M.A. (2024, June 14) Embryology Carnegie stage 14. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_14
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G