Preborn Children | Pictures & Science

~"Conceptional Age" is used to date all scientific evidence (including pictures). This is the true embryonic age measured from the time of conception. Primary Sources: 1) The Developing Human: Clinically Oriented Embryology (10e | 2015) 2) The Endowment For Human Development (www.EHD.org)

Terms & Definitions

1) Zygote (Greek origin): "to yoke or bind together" 2) Embryo (Greek origin): "young one who grows" 3) Fetus (Latin origin): "young one, unborn offspring" 4) Measurements: Crown-Rump Length (CRL) Crown-Heel Length (CHL) Greatest Length (GL) © USCCB

Human Fetus @ 16 Weeks|2nd Trimester

Her teeth now have enamel covering them, her stomach is producing digestive enzymes, and she will exhibit the "fight or flight" (hormonal stress response) when invasive procedures disrupt the protective womb she lives in. She is about the size of an "heirloom tomato". Height (CHL) = 8.0 in. Weight = 6.0 oz. © Biophoto Associates | Science Source

The Preborn Child | Human Embryology

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