CIRCULATORY SYSTEM

About how large is your heart?

• size of ankle

• size of foot

• size of fist

• size of wrist

The human heart has ____ chambers.

• 1

• 2

• 3

• 4

The pale, yellow liquid part of the blood is called....

• white blood cells

• plasma

• red blood cells

• platelets

The part of the blood that helps you stop bleeding.....

• plasma

• white blood cells

• red blood cells

• platelets

The part of the blood that fights off germs is...

• plasma

• platelets

• white blood cells

• red blood cells

The part of the blood that carries oxygen is called...

• red blood cells

• white blood cells

• plasma

• platelets

Red blood cells are shaped like...

• discs

• footballs

• half moons

• bananas

The heart is made up of _______ tissue.

• brain

• skin

• muscle

• bone

Blood is made in your __________.

• heart

• brain

• feet

• bones

Arteries carry blood __________

• to the heart

• away from the heart