New
New
Year 8

Healthy pregnancy

I can name some substances that can pass through the placenta and explain the effects they have on a developing foetus.

New
New
Year 8

Healthy pregnancy

I can name some substances that can pass through the placenta and explain the effects they have on a developing foetus.

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Lesson details

Key learning points

  1. Some substances can pass through the placenta including some drugs, alcohol and chemicals in cigarette smoke.
  2. This can affect the growth of the foetus.
  3. Short term consequences can include miscarriage, premature birth and low birth weight.
  4. Long term consequences can include addiction, sudden infant death and foetal alcohol spectrum disorder.

Keywords

  • Placenta - The placenta is an organ that is attached to the uterus wall; it provides the foetus with oxygen and nutrients from the mother's blood.

  • Foetus - The foetus is the stage of human development between an embryo (at around 8 weeks) up to when the baby is born.

  • Alcohol - Alcohol is a depressant drug present in alcoholic drinks. It slows down the messages travelling between the brain and the body.

  • Drugs - Drugs are substances that, when taken in, have an effect on the body.

Common misconception

Thinking that the lifestyle choices of a pregnant mother, including recreational use of drugs such as alcohol and nicotine, will not affect the foetus.

The lesson explores short-term and long-term effects that lifestyle choices of a pregnant mother, including recreational use of drugs such as alcohol and nicotine, can have on the developing foetus.

Poster work in Task B could be done in groups with criteria grids for peer marking.
Teacher tip

Content guidance

  • Depiction or discussion of sensitive content
  • Depiction or discussion of mental health issues

Supervision

Adult supervision required

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
True or false? Females carry a baby for around 40 weeks before it is born.
An image in a quiz
Correct answer: True
False
Q2.
What is the organ called where the mother and foetus exchange substances?
Correct Answer: Placenta
Q3.
What does the mother's blood provide for the growing foetus?
Correct answer: nutrients
blood
carbon dioxide
Correct answer: oxygen
Q4.
What waste product does the placenta remove from the foetus?
Correct answer: carbon dioxide
nitrogen
oxygen
drugs
Q5.
What connects the placenta to the foetus?
An image in a quiz
Correct Answer: Umbilical cord
Q6.
Who is correct?
Alex: A drug is always illegal.
Correct answer: Izzy: A drug can be illegal or legal.
Andeep: Alcohol is not a drug because it is in a drink.
Correct answer: Jun: Drugs are substances that affect the body.

6 Questions

Q1.
Which of the following are examples of drugs?
carbon dioxide
Correct answer: nicotine
oxygen
Correct answer: alcohol
Q2.
Drugs can pass from the mother to the foetus through the ...
An image in a quiz
Correct Answer: Placenta, Umbilical cord and placenta, Umbilical cord
Q3.
Which of the following are not symptoms of foetal alcohol spectrum disorder (FASD)?
An image in a quiz
smaller head
ear abnormalities
Correct answer: larger eyes
smaller cerebellum (part of the brain)
shorter, flatter nose
Q4.
True or false? The greater the intake of drugs the worse the effects on the foetus.
Correct answer: True
False
Q5.
Which of the following are long-term consequences of drug taking when pregnant?
premature birth
miscarriage
Correct answer: foetal alcohol spectrum disorder (FASD)
Correct answer: learning difficulties
low birth weight
Q6.
Which of the following is not a short-term consequence of drug addiction?
miscarriage
premature birth
Correct answer: babies born with a drug addiction
low birth weight
Q3 Rick's Photography/Shutterstock