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UNSW Embryology

Beginnings, Growth and Development

© Dr Mark Hill (2006)

Acknowledgements

Laboratory 11

Introduction

In the first part of this class we continue through late embryological development from Carnegie stage 16 to 23 and onward into early fetal development.

Embryo Fetal actual size comparison

As in Lab 4 (stage 13) in this Lab 11 a late embryo (stage 22) page has selected cross-sections to observe the development of internal organs and tissues.

First note of the processes occuring in late embryological development (limb and body growth, early ossification).

Then study the example of early Fetal Development (week 10). Compare the change in overall size from the late embryo stage. Look carefully through the sagittal sections of the embryo identifying the development of organs and tissues in the Fetus.

Finally look at overall Fetal Development in terms of length and weight.

In the last part of the class we will introduce developmental abnormalities both genetic and maternally derived and consider critical periods of development.

Glossary of Terms

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S |T | U | V | W | X | Y | Z

Next

Link to next page in this Practical 11 - Stage 16

Quick Movie Links

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)

Movie of Rotating Embryo(this shows an early embryo from all angles)

All Moviesthis shows many different ways of looking in at changes in different embryos.

Quick Links

UNSW Embryology ISBN: 0 7334 2321 3

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