explain the development of embryo in human being
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Development of the human body
Development of the human body is the process of growth to maturity. The process begins with fertilization, where an egg released from the ovary of a female is penetrated by a sperm cell from a male. The resulting zygote develops through mitosis and cell differentiation, and the resulting embryo then implants in the uterus, where the embryo continues development through a fetal stage until birth. Further growth and development continues after birth, and includes both physical and psychological development, influenced by genetic, hormonal, environmental and other factors. This continues throughout life: through childhood and adolescence into adulthood.
ln humans embryo begins to develop about 4 days after an egg is fertilized. Appearing initially as a tiny mass of cells, it eventually gives rise to the foetus, an obvious human form. ln the first days of embryo existence, it journeys along the fallopian tube .