Human Embryology
Human embryology is the study of the development of a human embryo from the moment of fertilization until the end of the eighth week of pregnancy. This process begins when a sperm and an egg unite, forming a single cell, which then divides and differentiates into various cell types. As the embryo develops, it forms essential structures and organs, such as the heart and brain. By the end of the eighth week, the embryo has taken on a recognizable human shape and is referred to as a fetus, entering the next stage of development until birth.
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Human embryology is the study of the development of a human embryo from fertilization to the end of the eighth week of pregnancy. It begins when a sperm fertilizes an egg, creating a zygote that divides and forms a blastocyst, which implants in the uterus. During the embryonic stage, vital organs and structures develop, including the heart, brain, and limbs. This period is crucial, as it lays the foundation for all future growth and development. Understanding embryology helps in recognizing normal development and identifying potential congenital issues or abnormalities.