Carnegie Stage 19 Definition

Age is approximately 47-48 postovulatory days

Length is approximately 17-20mm

External Features Include: the trunk has begun to straighten and elongate slightly, with the result that the head no longer forms a right angle with the line of the back of the specimen, the limbs extend nearly directly forward; the toe rays are more prominent, but interdigital notches have not yet appeared in the rim of the footplate


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