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Day 11: Birds of a (Colored???) Feather

An MRI's View

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The 11-day chick is moving even more. We cannot get very clear pictures, because it won't hold still long enough! We can see the "motion artifacts" in some images. We also see that if we repeat the same slice over and over, it looks different each time. Finally, we see lots of bright spots, especially in the amnion, caused by "sloshing" of the fluid as the chick moves.


Frame 143 - top We got lucky and found the chick holding still a few times. We can see that he has grown a lot! Frame 143 is the best. You can even see two parts of the brain (forebrain and hindbrain). The body is smaller, and not as easy to see as the head with its huge eyes.
Frame 128 - front Frame 133 - front

The upper albumen layer has shrunk considerably. The allantois with its shell membranes and blood vessels can be seen in many places. The chick's aorta (main blood vessel) is also visible in many frames.

Comments on these images were supplied by Carl Gregory. Thanks Carl!

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