Circulatory System

These cells, in the blood, carry oxygen and give the blood its color.

• white blood cells

• plasma

• platelets

• red blood cells

The cells in the blood that help fight germs like bacteria and viruses

• red blood cells

• platelets

• white blood cells

• yellow blood cells

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

The job of the heart is to . . .

• pump blood around the body.

• send food to the small intestines.

• break down food.

• give energy to the body.

The circulatory system works with the ___________ system to provide our body with oxygen.

• respiratory

• digestive

• muscular

• skeletal

What is the circulatory system made up of?

• Lungs, blood, blood vessels

• Liver, kidneys, and stomach

• Heart, Blood Vessels, and Blood

• Heart, stomach, liver and vessels

What are the main organs of the circulatory system?

• brain, spine, & nerves

• heart, arteries, & veins

• heart, lungs, & veins

• skin, nails, & hair

What are the smaller branched tubes that connect the arteries and veins called?

• mini veins

• blood vessels

• capillaries

What part of blood is responsible for carrying oxygen and carbon dioxide to body cells?

• Red Blood Cells
• White Blood Cells
• Platelets
• Plasma

What part of blood is responsible for fighting infections?

• Red Blood Cells
• White Blood Cells
• Platelets
• Plasma