Circulatory System

Your heart is about as big as your ___________.

• open hand

• skull

• fist

• thumb

What is one type of blood cells in your body? Choose one answer.

• red and white blood cells

• purple and blue blood cells

• red and blue blood cells

• gray and white blood cells

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Where do arteries take your blood?

• away from your heart

• towards your heart

What does blood do for your muscles?

• Brings oxygen away from them

• Brings nutrients away from them

• Brings carbon dioxide to them

• Brings oxygen to them

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Where are blood cells made?

• In your muscles

• In your bones

• In your heart

• In your brain

What are the two upper chambers of the heart called?

• sternum and breastbone

• right and left atria

• right and left ventricles

• membranes and molecules

What is the condition of fatty deposits on the arterial walls that can clog blood vessels?

• atherosclerosis

• hypertension

• anemia

• leukemia

What are microscopic blood vessels that connect arteries and veins called?

• ventricles

• capillaries

• arteries

• veins

This type of circulation is the flow of blood through the heart, to the lungs where it picks up oxygen, and back to the heart.

• systemic circulation

• pumonary circulation

• coronary circulation

• arterial circulation

What is the function of white blood cells?

• Takes carbon dioxide back to our lungs to be exhaled.

• To fight infections

• to carry oxygen from the lungs to the rest of our body

• to maintain body temperature