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Para otros usos de este término, véase Embrión (desambiguación). Un embrión es la etapa inicial del desarrollo de un organismo multicelular. En los organismos que se reproducen sexualmente, el desarrollo embrionario es la parte del ciclo vital que comienza justo después de la fecundación del óvulo femenino por el espermatozoide masculino.
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.
With each week of pregnancy, your baby-to-be is developing in leaps and bounds. In the early stages, they are called a zygote. They then progress to an embryo, fetus, and finally, baby.
10 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 .
- The Editors of Encyclopaedia Britannica
18 de ago. de 2023 · They propose that an embryo be defined as “a group of human cells supported by elements fulfilling extraembryonic and uterine functions that, combined, have the potential to form a fetus”, and ...
6 de jul. de 2017 · Embryo Definition. An embryo refers to the early developmental stage of eukaryotic organisms following the fertilization of an egg (derived from a female) by sperm (derived from a male) as a method of sexual reproduction.
The 3D Atlas of Human Embryology comprises 14 user-friendly and interactive 3D-PDFs of all organ systems in real human embryos between stage 7 and 23 (15 till 60 days of development), and additional stacks of digital images of the original histological sections and annotated digital label files.
