About Carnegie Stage 20
Most embryos at stage 20 are approximately 50-51 postovulatory days old and measure 21-23 mm in length. Distinguishing criteria for this stage include upper limbs slightly bent at the elbows, short stubby fingers, hands curving over the cardiac region but still far apart from each other, and a fringe-like vascular plexus that marks growth centers laterally in the superficial tissues of the head.
MRI Slice Selector
Sample Animations
Rotation Animation
(650 KB QuickTime file)
Neural Tube Rotation 1
(296 KB QuickTime file)
Neural Tube Rotation 2
(650 KB QuickTime file)
Heart Rotation
(240 KB QuickTime file)
Liver Rotation
(264 KB QuickTime file)
Stomach Rotation
(232 KB QuickTime file)
Eyes Rotation
(232 KB QuickTime file)
Lungs Rotation
(248 KB QuickTime file)
Suprarenals Rotation
(244 KB QuickTime file)
Cloaca Rotation
(260 KB QuickTime file)
Stereo View Rotation
(3 MB QuickTime file, view cross-eyed)
Psuedo Timelapse
(650 KB QuickTime file)
Optical Images
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© 2006 Bradley R. Smith