Somatic changes during human prenatal life.
A twofold synopsis is presented on human developmental anatomy prior to birth. The first portion of the paper focuses on conceptual perspective and the second part on factual understanding. Section 1 gives an overview of the wide assortment of somatic changes manifested in the prenatal segment of human ontogeny; it illustrates alterations occurring in number, kind, location, size, and shape of body components. Section 2 presents a chronological panorama of human anatomical modifications during prenatal life; it traces somatic changes from "zygote to embryo", from "embryo to fetus", and during "the fetal period".
D001724:Birth Weight; D002454:Cell Differentiation; D004622:Embryo, Mammalian / Q000033:anatomy & histology; D004627:Embryonic Induction; D005333:Fetus / Q000033:anatomy & histology; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn