Embryology   Biology 441      Albert Harris

 

Links to some YouTube videos of embryonic development

 

This one is VERY interesting, Notice the Somite formation, fluorescent fish GFP?

http://www.youtube.com/watch?v=JmLhEd73jRw      It is only seven seconds long!

The nuclei of the notochord rearrange (flow) where new somites form.

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Diagram of interesting movement of some of the nuclei in this video.
I made this drawing myself; and it needs improvement.


 

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Another short time lapse of GFP -labeled fish mesoderm organizing notochord & somites

http://www.youtube.com/watch?v=nm1l7970r20

 

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chick somite formation

http://www.youtube.com/watch?v=oHWZntRXf1Q&feature=endscreen&NR=

 

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Mammal cleavage, Human embryo, blastocyst formation, and hatching

http://www.youtube.com/watch?v=sIxBCxPW2Fc&feature=endscreen&NR=1

 

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This a Human Embryo? Early cleavage; gentle music.

http://www.youtube.com/watch?v=BsaEqwfoCB0&feature=related

 

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A graph of time changes of concentrations of clock and wave-front

This simulates segmentation with graphs of concentrations!? But it doesn't offer a program!
http://www.youtube.com/watch?v=p9Ogg8BJW8c&NR=1&feature=endscreen

 

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The next three seemingly illustrate the clock and wave-front hypothesis, but I don't understand.

http://www.youtube.com/watch?NR=1&v=FRuKxR0T5WQ&feature=endscreen

http://www.youtube.com/watch?v=9wrBROwoRSk&feature=related

http://www.youtube.com/watch?v=gwtLL29bfnE&NR=1&feature=endscreen

 

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Zebrafish gastrulation

http://www.youtube.com/watch?v=QXiFM2U1YFw&NR=1&feature=endscreen