Carnegie stage 13: Difference between revisions

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==Additional Images==
==Additional Images==
See also [[Carnegie stage 13 - serial sections]] which are serial images from an equivalent pig embryo.
<gallery>
<gallery>
File:Stage13_crown_rump_length.jpg|Stage 13 crown rump length
File:Stage13_crown_rump_length.jpg|Stage 13 crown rump length

Revision as of 00:15, 11 August 2010

Introduction

Stage13 sem1c.jpg

Facts

Week 4, 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


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

Stage13 bf1c.jpg

Scanning EM

Stage13 sem1c.jpg

Stage13 sem2c.jpg

Stage13 sem3c.jpg

Kyoto Collection

Stage13 bf2c.jpg

Image source: Embryology page Created: 19.03.1999

Stage 13 Serial Section Images

These are the original serial images prepared from embryo sections for Embryology practical classes and transferred online in 1996.

About Stage 13 Embryo Sections - This image is from a serial section of a 6mm CRL pig embryo with some features of the Stage 14 embryo. This embryo is approximately equal to the day 42 human embryo. Use these serial images to identify internal features and relationships that exist within the embryo at this stage. Then compare these images with the later features of the Carnegie stage 22 human embryo.

Links: Carnegie stage 13 - serial sections | Carnegie stage 13 | Embryo Serial Sections
Stage 13 image 099-icon.jpg
Stage 13 Serial unlabeled images

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

Embryo Stage 13 Serial labeled images

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


Stage 13 Movies

Stage13-GIT-icon.jpg Stage13-CVS-icon.jpg Stage13-CNS-icon.jpg
Gastrointestinal Cardiovascular Central Nervous System

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.

Embryonic Development


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 17) Embryology Carnegie stage 13. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_13

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G