Day 16: What Shape is an Egg?
An MRI's View
The chick continues to grow - it looks very
cramped in there now! In some views you can see
the beak poking toward the air sac.
There is a lot of movement - more than
yesterday. The head is moving up to 1 cm over a
period of a few minutes.
MRI: Front views.
Here are some front views. Positions (offset)
Frame 86: front - 4mm.
Visible features: brain, eyes, beak, air
cell, body, and the heart(?).
Frame 88: front - 2mm.
Visible features: eye, brain, beak,
wing or leg(?), body & organs,
neck & shoulders.
MRI: Side views.
Here is a side view. Positions (offset) are
Frame 60: side - +4mm
In this image you can see a spot
between and below the eyes. This
is probably an air passage -
either the mouth or a nasal or
sinus passage. It is dark because
there is no longer any fluid in it
- the chick is breathing air from
the air cell! Other visible
features: brain, neck, air cell,
Comments on these images were
written by Carl Gregory. Thanks Carl!
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