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Wolpert: Principles of Development 3e

Chapter 09

Organogenesis

The limb

http://embryology.med.unsw.edu.au/
Use the resources on Mark Hill’s Embryology site at the University of New South Wales to explore limb development. In the navigation bar at the left, follow link for “Molecular,” then “Limb Axes” to answer the following questions:

Internal Organs: blood vessels, lungs, kidneys, heart, and teeth

http://www.indiana.edu/~anat550/embryo_main/
Visit this series of animated human organ systems during development. Discover how well you understand the formation of these systems through participation in the assessment of the site by taking a pre-test and post-test.

virtualhumanembryo.lsuhsc.edu
The Virtual Human Embryo project at Louisiana State University in Baton Rouge has developed a digital atlas of human development. Use the link on the left for the “Heirloom collection”, then again on the left, “The Human embryonic period”. You will find a combination of photographs and drawings of human development, broken down into the 23 Carnegie stages. Go through them one by one and try to understand what is being shown. For example:

  1. Where in the female reproductive system does stage 1 occur?

  2. In the stage 5 photographs, what are we looking at? What is the background on which the embryo is sitting?

  3. In the stage 10 photograph, identify the neural tube and the somites.

  4. In the later embryos, can you relate this lateral view of the development of the face to the frontal view you explored in the anatomy site from Indiana University ( http://www.indiana.edu/~anat550/embryo_main/ )?

http://www.med.unc.edu/embryo_images/
Embryologist Kathy Sulik and radiologist Peter Bream of the University of North Carolina, Chapel Hill, developed this illustrated, nine-unit tutorial of normal and abnormal mammalian development. In sequences of labeled electron micrographs and animations, the eyes, ears, heart, and other structures sprout and take shape. Watch a furrow on the embryo's back close to form the spinal cord, or slice through the center of an embryo to reveal the looping heart.