B7.5 - Alcohol And Other Carcinogens (Finished) Flashcards
Why is alcohol in small amounts not dangerous?
It may be poisonous but the liver can usually remove it before permanent damage is done
What is the problem of drinking alcohol during pregnancy?
If a pregnant woman drinks alcohol it passes across the placenta into the developing baby. The developing lover of the baby can’t cope with it so it’s brain and body can be badly affected
What are some problems caused by drinking alcohol during pregnancy for babies?
- The baby can have facial deformities
- Learning / development problems
- hearing, kidney, liver, heart problems
What is the result effect ln a baby of drinking alcohol during pregnancy called?
Fetal alcohol syndrome
What are thr problems caused by alcohol?
The liver and brain can suffer long term damage:
- cirrhosis of the liver can be developed which destroys liver tissue
- The brain can become soft and pulpy, normal brain structures being lost so it can’t function properly
- Alcohol is a carcinogen
What are some sources of ionising radiation?
- Ultraviolet light from the sun
- radioactive materials found in soil, water, air
- X-rays
- Nuclear accidents
What can ultraviolet light from the sun cause?
N increased rsk of skin cancer
What is the problem of ionising radiation?
Ionising radiation penetrates the cells and damages chromosomes causing mutations in DNA which can cause cancer