Unit 3- 3D
About Blood
The blood work in transport system
Carries substences
food
Oxygen
Carbon Dioxide
others importants substences
There are two kinds of blood cells
Red blood cells :
White blood cells
Carry oxygen
Fight infections and diseases
Adults have about five litres in your body
When you have accident, you can lose a lot of blood
But, when the person can't make quickly, she needs to get from another person
there are differents types
die: 3 mounths/ Make: all the time
Main: A,B,AB.O
There are 20 differents types