The Prenatal Period During Which the Major Organ Systems Form

Question

The prenatal period during which the major organ systems form is the
A) fetal period.
B) germinal period.
C) embryonic period.
D) neonatal period.

Accepted Answer

The embryonic period typically occurs during the first 8 weeks of prenatal development and is marked by the formation of major organ systems. The germinal period refers to the first 2 weeks of development and is characterized by rapid cell division and the formation of the blastocyst. The fetal period occurs after the embryonic period and lasts from week 9 until birth. The neonatal period refers to the first four weeks of life after birth.