Movies - Embryo Carnegie stage 13 - These embryo animations rotate and show the relative position of internal systems at about the middle of embryonic development.
#48 HOUR CHICK EMBRYO SERIAL CROSS SECTION SERIAL#
Links: Carnegie stage 22 - selected serial sections | Carnegie stage 22 - serial sections | Carnegie stage 22 | Embryo Serial Sections These images have been selected to show some key features of late embryo development.
![48 hour chick embryo serial cross section 48 hour chick embryo serial cross section](https://sc02.alicdn.com/kf/HTB1hseIaizxK1RkSnaVq6xn9VXam/Embryo-of-Chicken-serial-transverse-sections-microscope.jpg)
Links: Carnegie stage 13 - serial sections | Carnegie stage 13 | Embryo Serial SectionsĪbout Stage 22 Embryo Sections - The Carnegie stage 22 human embryo is 27 mm (CRL) in size and approximately equal to day 54 - 56 of development (week 8). Then compare these images with the later features of the Carnegie stage 22 human embryo. Use these serial images to identify internal features and relationships that exist within the embryo at this stage. This embryo is approximately equal to the day 42 human embryo. Links: stage 13 sections | Carnegie stage 13 | Movies - stage 13 | stage 22 sections stage 22 selected sections | Carnegie stage 22 | Movies - stage 22 Carnegie Stage 13Ībout 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. More about these original serial images and associated notes. How different are the embryonic systems to the adult anatomy? What has changed?įinally put the systems together by watching the embryo animations based upon these sections. These show organ and tissue development of specific structures by the end of the embryonic period. Then look through the same embryo stage selected labeled images. Next look through the late (week 8) embryo (stage 22) labeled images as you did before. Then if you like, look through the unlabeled images. It is not so important to identify every single feature, observe what structures are present and where they are in the middle of the embryonic period (week 4). Start here by looking through the early (week 4) embryo (stage 13) labeled images.
![48 hour chick embryo serial cross section 48 hour chick embryo serial cross section](https://www.vcbio.science.ru.nl/images/embryology/chicken-patten-24hrs-fig017_zoom.gif)
In addition, there are now 3D animations based upon reconstruction of the embryos from these serial sections.Ģ011 - Selected slides are currently being rescanned at high resolution to show specific developmental details. Stage 22 embryo also has a set of selected images showing more detail of some organ and tissue development. The Stage 13 and 22 images are available in at least two formats, an unlabeled set (image 1 - 49) and a labeled set (image 50 - 98) in a rostro-caudal sequence (head to tail). The sections below are from the original teaching set prepared at UNSW that were digitized and put online in 1996 as a teaching resource. Even today the best way to observe anatomical development and relationships is by direct observation in serial sections through the embryo and fetus. Historically, an important way of teaching embryology is by direct observation of histological sections at different stages of development.