Overview
Fetal development is a complex and fascinating process that begins with the fertilization of an egg and continues until birth. It is divided into two main stages: the embryonic stage, which lasts until eight weeks, and the fetal stage, which lasts from nine weeks until birth. During these stages, th...
Key Terms
Example: The zygote begins to divide and develop into an embryo.
Example: During the embryonic stage, the embryo develops major organs.
Example: The fetus grows rapidly and develops features recognizable as a baby.
Example: The average gestation period for humans is about 40 weeks.
Example: Each trimester has specific developmental milestones.
Example: Organogenesis occurs primarily during the first trimester.