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

Back

Carnegie Stage 21

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.

 

 
N496 46XX
 
N641 46XY

 

 

Back

Carnegie Stage 21

The movies below show anatomical domains defined in the N496 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; eye - dark blue; otic vesicle - yellow; dorsal root ganglia - cyan.

 

 
N496 46XX

 

 

 

 

 

Back

Carnegie Stage 21 Definition

 

Age is approximately 52 postovulatory days

Length is approximately 22-24mm

External Features Include: the hands are slightly flexed at the wrists and nearly come together over the cardiac eminence; the feet are also approaching each other and the toes of the two sides sometimes touch; the superficial vascular plexus of the head has spread upward to form a line at somewhat more than half the distance from eye-ear level to the vertex.

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