• Volume render movies
  • Painted anatomical regions
  • Carnegie Stage Definition

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Carnegie Stage 20

The movies below show volume renders of OPT models. No staining has been used on any of the specimens and the images were captured using autofluorescence with a FITC filter.

 

 
N382 46XX
 
N529 46XY

 

 

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Carnegie Stage 20

The movies below show anatomical domains defined in the N382 model. The domains have been manually defined in the OPT models using specialised software and then visualised using commercial rendering packages.

The various domains are: neural tube - orange; heart - red; liver - dark green; optic vesicle - dark blue; otic vesicle - yellow; dorsal root ganglia - cyan.

 

 
N382 46XX

 

 

 

 

 

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Carnegie Stage 20 Definition

 

Age is approximately 50-51 postovulatory days

Length is approximately 21-23mm

External Features Include: the upper limbs have become slightly bent at the elbows; hands have short, stubby fingers and are still far apart, a delicate fringe-like vascular plexus appears in the superficial tissue of the head and the edge of the plexus is approximately halfway between ear-eye level and the vertex of the head.

O'Rahilly R and Muller F [1987] Developmental Stages in Human Embryos. Carnegie Institute, Washington, Publication no. 637