Carnegie stage 13
Introduction
Facts
Week 4-5, 26 - 30 days, 3 - 5 mm, Somite Number 21 - 29
Events
Ectoderm: Neural tube continues to close, Caudal neuropore closes, forebrain
Mesoderm: continued segmentation of paraxial mesoderm (21 - 29 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, early upper limb bulge
Features
day 26, 27 somites, forebrain, site of lens placode, site of otic placode , stomodeum, 1st pharyngeal arch, 2nd pharyngeal arch, 3rd pharyngeal arch, heart prominence, somites
Identify: forebrain, site of lens placode, site of otic placode, stomodeum, 1st pharyngeal arch, 2nd pharyngeal arch, 3rd pharyngeal arch, heart prominence, somite
- Links: Week 4 | Somitogenesis | Placodes | Head | Lecture - Early Vascular | Lecture - Gastrointestinal | Lecture - Head Development | Science Practical - Gastrointestinal | Science Practical - Head | Category:Carnegie Stage 13 | Stage 14
- Carnegie Stage 13 Movies: Gastrointestinal Tract | Cardiovascular | Central Nervous System | Carnegie Stage 13 | Stage 22 Movies | Movies
- The original animations were part of the UNSW Independent Learning Project (ILP) prepared by Aashish Kumar (2006).
- 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 Links: Embryo and Placenta | Embryo | Embryo (label) | Embryo (animated) | Embryo (animated large) | Head region | Head region (label) | Body region | Body region (label) | Carnegie stage 13
Scanning EM
Kyoto Collection
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
- Carnegie stage 13: 6473 left | 6473 dorsal | 6473 right | 6469 right | 8066 dorsal | 8066 left | 8119 left | 7433 right | 7433 ventral
Stage 13 Serial Section Images
These are the original serial images prepared from embryo sections for Embryology practical classes and transferred online in 1996.
- Links: Carnegie stage 13 - serial sections | Carnegie stage 22 - serial sections | Carnegie stage 22
Labeled Sections
A1L | A2L | A3L | A4L | A5L | A6L | A7L |
B1L | B2L | B3L | B4L | B5L | B6L | B7L |
C1L | C2L | C3L | C4L | C5L | C6L | C7L |
D1L | D2L | D3L | D4L | D5L | D6L | D7L |
E1L | E2L | E3L | E4L | E5L | E6L | E7L |
F1L | F2L | F3L | F4L | F5L | F6L | F7L |
G1L | G2L | G3L | G4L | G5L | G6L | G7L |
Unlabeled Sections
A1 | A2 | A3 | A4 | A5 | A6 | A7 |
B1 | B2 | B3 | B4 | B5 | B6 | B7 |
C1 | C2 | C3 | C4 | C5 | C6 | C7 |
D1 | D2 | D3 | D4 | D5 | D6 | D7 |
E1 | E2 | E3 | E4 | E5 | E6 | E7 |
F1 | F2 | F3 | F4 | F5 | F6 | F7 |
G1 | G2 | G3 | G4 | G5 | G6 | G7 |
Stage 13 Movies
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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.
Cite this page: Hill, M.A. (2024, June 15) Embryology Carnegie stage 13. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_13
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G