DefinitionIntroductory
What are the three basic stages of prenatal development as described in the chapter?
The three basic stages of prenatal development are the zygote, embryo, and fetus stages.
Prenatal development is divided into three basic stages: the zygote, embryo, and fetus stages. The zygote stage begins at fertilization and continues as the zygote travels through the fallopian tube and implants in the uterus. The embryonic stage spans from the second to the eighth week of development, during which the developing organism is termed an embryo. From the ninth week until birth, the developing organism is known as a fetus, marking the fetal stage.
Key points
- Prenatal development consists of three stages: zygote, embryo, and fetus.
- The zygote stage involves fertilization and implantation in the uterus.
- The embryonic stage occurs from 2 to 8 weeks, with the organism called an embryo.
- The fetal stage begins at the ninth week and continues until birth, with the organism called a fetus.
Source:Introduction to Maternity and Pediatric Nursing· An Overview of Growth, Development, and Nutrition· p. 107–127
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Introduction to Maternity and Pediatric Nursing
Gloria Leifer
EIGHTH EDITION · ELSEVIER