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An embryo is the initial stage of development for a multicellular organism. In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male sperm cell.
Una vez pasada la gastrulación, el embrión continúa desarrollándose hasta convertirse en un organismo multicelular maduro, formando las estructuras necesarias para la vida fuera del útero o del huevo. Como su nombre indica, la organogénesis es la fase del desarrollo embrionario en la que se forman los órganos.
9 de may. de 2024 · Embryo, the early developmental stage of an animal while it is in the egg or within the uterus of the mother. In humans the term is applied to the unborn child until the end of the seventh week following conception; from the eighth week the unborn child is called a fetus.
13 de ago. de 2023 · An embryo is the stage of early development after fertilization up to the phase of initial organogenesis. It may also pertain to the multicellular organism itself that undergoes extensive and rapid growth and cell differentiation during the early stage of development.
31 de jul. de 2019 · Mixture of 3D animation and motion graphics to explain the early development of a human embryo.
This page shows some key events of human development during the embryonic period of the first eight weeks (weeks 1 - 8) following fertilization. This period is also considered the organogenic period, when most organs within the embryo have begun to form.
Learn how a single cell becomes a complex organism in eight weeks of development after fertilization. Explore the stages of cleavage, blastulation, gastrulation, and germ layer formation with diagrams and examples.
