The first Embryology Lab covered gametogenesis, fertilization and implantation.
This second Embryology Lab continues through the Embryonic period up to Carnegie stage 16 (week 6).
The third Lab (week 11) continue through the late Embryonic to early Fetal period (week 6-10).
The third week is the begining of the embryonic period. During this Embryonic period within the embryo: axes are established, the embryo folds and organogenesis occurs.
Outside the embryo: the placentata develops from chorionic villi and the fetal mebranes grow.
It should be obvious that this period of development is complex, and an entire class could be spent on folding or development of any one organ system. Therefore the Lab must be reasonably general in covering the details of folding and organogenesis.
We will also be using the Carnegie stage 7-16 images to examine external changes on the embryo.
Identify the key structures in Figures on the following pages and discuss as a small group the dynamic events of development that are occuring at this early stage. If required ask your tutor for assistance.
Laboratory 11 Covers later stages of development in the fetus.
Movie of Human Embryo Growth (this shows a human embryo growing, all images are to scale)
Movie of Limb Growth (this shows development of the human arm from bud to paddle, to hand with arm)
Movie of Mouse Embryo Growth (this shows a mouse embryo growing, note the primary sites of ossification (bright white) that appear at the ends of long bones)
Movie of Rotating Embryo (this shows an early embryo from all angles)
All Movies this shows many different ways of looking in at changes in different embryos.
Home Page
Embryo stages
Fetal Dev
Dev Notes 1
Dev Notes 2
System Notes
Acknowledgements
Practical 4
Introduction
Background
Stage 7
Stage 8
Stage 9
Stage 10
Stage 11
Stage 12
Stage 13
Stage 14
Stage 15
Clinical Considerations
Development - week by week
Practical 3
Lecture 5
Lecture 6
Practical 11
Movies
News
Class Notes
Serial Images
K12 Students
Abnormal
Histology
Site Map
School of Med Sci
UNSW Medicine
University of NSW
UNSW Cell Biology
NCBI Books
Dev Biol (Gilbert)
Note- These notes are under development for this current year 2004.
This second embryology practical will continue on from implantation to cover the Embryonic period of development.
It should be obvious that this period of development is complex, and an entire class could be spent on folding or development of any one organ system. Therefore the Lab must be reasonably general in covering the details of folding and organogenesis.
If you are interested in a more detailed coverage, look at the Carnegie and Systems sections of Notes (from the lefthand menu).
The lefthand side menu has links to all pages required for this Lab. Also at the bottom of the same menu is a window to Search UNSW Embryology using any term/concept you do not understand. (note the search window uses Google, so will only work with an active internet connection.
The Kyoto Collection images are reproduced with the permission of Prof. Kohei Shiota for tutorial/revision purposes and cannot be reproduced electronically or in writing without permission.
Thanks also to the late Prof William Larsen, for allowing use of movies based on his excellent Textbook.
These notes and linked materials have been prepared for Educational purposes only.
Please email Dr Mark Hill if you wish to make a comment about this current project.
