The Circulatory System

CIRCULATORY SYSTEM

What is the essence of the circulatory system and how does it work?

The circulatory system, made up of the heart, blood vessels and blood acts to covey important materials such as oxygen and glucose to body cells through the pumping of blood by the heart through blood vessels.

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​Circulatory System

The heart is a muscle. A very powerful special muscle that pumps blood through our bodies. The heart is the size of a human fist.

Heart

• The heart is similar to a pump or two pumps in one.

• The movement of blood through the heart and around the body is called circulation.

• It takes your heart 60 seconds to pump blood to every cell in your body.

Multiple Choice

The job of the heart is to . . .

• pump blood around the body.

• break down food

Circulatory System

• It is made up of the heart, the blood vessels, and the blood.

• This system transports oxygen, nutrients, and waste through the body.

Multiple Choice

Which describes all the parts of the circulatory system?

• heart, lungs, stomach, muscles

• heart, blood, arteries, and veins

• bones, skin, hair

Blood Vessels

Blood vessels transport blood to your body. There are two types of blood vessels; arteries and veins.

Why is blood so important?

• Your body needs a steady supply of blood.

• Blood carries OXYGEN. This oxygen is transported to other cells.

• To stay alive, a person needs healthy living cells.

Blood & Plasma

• Plasma - The liquid part of the blood that carries nutrients

• Red blood cells- carry oxygen, nutrients, and waste through the body.

  
  

• White blood cells - help fight infection

• Platelets - help the blood to clot.

Arteries

Arteries carry blood AWAY from the heart. A good way to remember this is that the word artery/arteries start with the letter A just like the word Away.

Multiple Choice

Arteries carry blood _______ from the heart.

• Away

• Towards

Red Blood Cells

Red blood cells are blood cells that carry oxygen to different parts of your body.

Multiple Choice

The part of the blood that carries oxygen is called

• Red blood cells

• White blood cells

White Blood Cells

White blood cells fight off infections and germs. These white blood cells race to an injury and form an army to help fight the germs that may get into the body due to the injury.

Drag and Drop

White blood cells

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Drag these tiles and drop them in the correct blank above

fight infection and disease

allow for gases to exchange

give blood its colo

Veins

Veins carry blood towards the heart.

Multiple Choice

Veins carry blood __________ the heart.

• Away

• Towards

Multiple Choice

As the blood reaches the lungs, what is removed from the blood?

• Oxygen

• Carbon dioxide

• Red blood cells

• White blood cells

How to keep your heart strong and healthy!!

• Remember that your heart is a muscle. If you want it to be strong, you need to exercise it. How do you do it? By being active in a way that gets you huffing and puffing, like jumping rope, dancing, or playing basketball. Try to be active every day for at least 30 minutes! An hour would be even better for your heart!

• Eat a variety of healthy foods and avoid foods high in unhealthy fats, such as saturated fats and trans fats (reading food labels can help you figure out if your favorite snacks contain these unhealthy ingredients).

• Try to eat at least five servings of fruits and vegetables each day.

• Avoid sugary soft drinks and fruit drinks.

• Don't smoke. It can damage the heart and blood vessels.