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Stages of Prenatal Development

The prenatal period refers to the stages of development between conception and birth, including the germinal stage in the first two weeks, the embryotic period from weeks 3 to 8, and the fetal period from week 9 until birth. During this time, the embryo develops its basic form by week 10 and organs become fully developed as a fetus. Prenatal development is also described as antenatal development and different terms like "antepartum" are sometimes used to describe this period before birth.

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Reynald Manzano
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50 views1 page

Stages of Prenatal Development

The prenatal period refers to the stages of development between conception and birth, including the germinal stage in the first two weeks, the embryotic period from weeks 3 to 8, and the fetal period from week 9 until birth. During this time, the embryo develops its basic form by week 10 and organs become fully developed as a fetus. Prenatal development is also described as antenatal development and different terms like "antepartum" are sometimes used to describe this period before birth.

Uploaded by

Reynald Manzano
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We take content rights seriously. If you suspect this is your content, claim it here.
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PRENATAL PERIOD

The process of prenatal development occurs in three main stages. The first two weeks after

conception are known as the germinal stage. The third through the eight week is known as the

embryotic period, and the time from the ninth week until birth is known as the fetal period.

In human pregnancy, prenatal development is also called antenatal development. The

development of the human embryo follows fertilization, and continues as fetal development.

By the end of the tenth week of gestational age the embryo has acquired its basic form and is

referred to as a fetus. The next period is that of fetal development where many organs become

fully developed. This fetal period is described both topically (by organ) and chronologically (by

time) with major occurrences being listed by gestational stage.

Different terms are used to describe prenatal development, meaning development before

birth. A term with the same meaning is the “antepartum” (from Latin ante “before” and parere

“to give birth”). Sometimes “antepartum” is however used to denote the period between the

24th/26th week of gestational age until birth, for example in antepartum hemorrhage.

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