Year 5 Body Systems Quiz

Which gas do we breathe in?

• carbon dioxide

• H20

• Oxygen

• magnesium

Which gas do we breathe out?

• oxygen

• carbon dioxide

• H2O

• sulphur

Approximately how many muscles do we have in our body?

• 150

• 206

• 1350

• 650

Approximately how long does it take blood to circulate around your body?

• 45 seconds

• 24 hours

• 3 minutes

• 1 week

What is nerve cells called

• dendrites

• neurons

• axons

• cells

How many litres of saliva do we produce daily?

• 2 litres

• between 0.5 and 1.5 litres

• between 3 and 4 litres

• 5 litres

How many bones are there in an adult?

• 602

• 260

• 206

• 650

What is another name for your food pipe?

• oesophagus

• trachea

• stomach

• larynx

Why does our right lung have 3 chambers and the left one has 2?

• The left lung lung give space for the stomach.

• The left lung makes space for the brain.

• The left lung makes space for the trachea.

• The left lung makes space for the heart.

Which body system is the liver a part of?

• Nervous system

• circulatory system

• digestive system

• muscular system