Carnegie Stage 10 |
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| N42 | N480 | N480 | ||
| 46 XX | 46 XY | 46 XY |
Age is approximately 28 postovulatory days Length is approximately 1.5 - 3.6mm External Features Include: the neural tube is closing. First and possibly second pharyngeal arches visible. Looped heart tube visible. O'Rahilly R and Muller F [1987] Developmental Stages in Human Embryos. Carnegie Institute, Washington, Publication no. 637, and O'Rahilly R, Müller F (2010) Developmental stages in human embryos: revised and new measurements. Cells Tissues Organs. 192:73-84. PMID: 20185898. |