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The period from conception to birth is known as:

  • A.post-embryonic period
  • B.postnatal period
  • C.prenatal period
  • D.pre-embryonic period

Answer: C

The period from conception to birth is the prenatal period. It covers the stages from fertilisation through the germinal, embryonic and fetal periods, about nine months in all. The postnatal period begins after birth. 'Pre-embryonic' covers only the first days after fertilisation, and 'post-embryonic' refers to what follows the embryonic stage, so neither spans the whole period.

The prenatal period has three parts: the germinal period of about two weeks, the embryonic period to eight weeks, and the fetal period until birth.

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