Gestation and Birth



Gestation and Birth

  1. What is gestation?
    Answer: The period of embryo/foetus development in the uterus.
  2. What is the gestation period?
    Answer: The time between conception and birth.
  3. Why is the exact time of conception hard to determine?
    Answer: Fertilisation is hard to pinpoint.
  4. How is the beginning of gestation usually dated?
    Answer: From the beginning of the previous menstrual period.
  5. What is the average length of the gestation period?
    Answer: 266-270 days (38-38.5 weeks) or 9-9.5 months.

Predicting Birth Dates

  1. If a woman conceives on 22 January, predict the birth date.
    Answer: Between 26-30 October.
  2. If a woman conceived on 3 March and the baby was born on 4 November, was the birth date earlier or later than predicted?
    Answer: Later than predicted.

Stages of Human Development

  1. What is the result of fertilisation?
    Answer: A zygote.
  2. What is a zygote?
    Answer: The earliest stage in the development of the embryo.
  3. What is an embryo?
    Answer: An animal in the early stages of development in the uterus.
  4. How long does the embryo stage last in humans?
    Answer: From attachment to the uterine wall until the eighth week of pregnancy.
  5. What happens to the embryo at eight weeks?
    Answer: It does not look like a human yet.
  6. What is a foetus?
    Answer: The stage of human development from the ninth week until birth.
  7. What is a newborn (neonate)?
    Answer: A baby/infant for the first 28 days after birth.
  8. What is a baby (infant)?
    Answer: A human from the 29th day after birth until it is 1-2 years old.

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