Circulatory System

Which is the blood cell that protects against infections?

• White blood cells

• Red blood cells

• Platelets

How many chambers does the heart have?

• 4 chambers (2 atriums and 2 ventricles)

• 1 chamber

• 2 chambers

What is the function of the red blood cells?

• They absorb oxygen through something called hemoglobin.

• They are just red

• They heal wounds

What is the function of platelets?

• They transport oxygen

• They heal wounds and coagulate blood

• They protect from infections.

Why is blood important?

• It carries important nutrients, oxygen and protection

• Because it is red and red is pretty cool

• Blood is not important

Describe how the heart circulates blood after watching the following video:

https://www.youtube.com/watch?v=tg_ObDJEaGo 

Research on your book what are veins, arteries and vessels