FOUNDATIONAL TERM
Gestational age
孕周
Pregnancy age usually dated from the first day of the last menstrual period.
Study this concept in context
60 · Embryonic and fetal development
Prenatal development combines differentiation, organ formation, and maternal–fetal exchange. Gestational age, placental function, and test evidence describe different aspects of that process.
Sources
- MedlinePlus: Fetal development
- NICHD: Placental development
- American Heart Association: Fetal circulation
- NICHD: Pregnancy
- CDC: Alcohol during pregnancy
- NICHD: Prenatal care
Definitions come from the published lessons. Read the linked lesson for mechanisms, conditions and examples.