The Amnion

Question 1

What is the amnion?

Answer 1

• a membrane that surrounds the developing embryo and foetus

Question 2

What does the amnion do?

Answer 2

• secretes a fluid called amniotic fluid that fills the amniotic cavity

Question 3

What is amniotic fluid?

Answer 3

• fluid that surrounds the developing foetus
• serves to provide a protective environment

Question 4

What does amniotic fluid consist of?

Answer 4

• 99% water
• foetal cells
• waste products

Question 5

What do the foetal cells found in amniotic fluid contain?

Answer 5

• foetal genetic information

Question 6

What is the 1st function of amniotic fluid?

Answer 6

1. It supports the developing foetus, allowing it freedom to move about easily
   - and so prevents malformations due to gravity/pressure

Question 7

What is the 2nd function of amniotic fluid?

Answer 7

2. It cushions and protects the foetus from damage by external injury or from impact from the mother

Question 8

What is the 3rd function of amniotic fluid?

Answer 8

3. It provides a medium in which to practice breathing and swallowing movements

Question 9

What is the 4th function of amniotic fluid?

Answer 9

4. It holds urine as it is released from the foetus

Question 10

What is the 5th function of amniotic fluid?

Answer 10

5. It protect the foetus against changes in temperature and dehydration