The circulatory system transports materials throughout the body, delivering oxygen, nutrients, and hormones while removing wastes. It includes three main parts: the heart, blood, and blood vessels (arteries, veins, and capillaries). Maintaining a healthy heart requires regular exercise, a balanced diet, and avoiding smoking.

1. Circulatory System
The Circulatory System is
responsible for transporting
materials throughout the
entire body.

3. AMAZING FACTS
• 20-22 seconds .
• You have thousands of miles of blood vessels
in your body. Anywhere between 75,000 -
100,000 miles. The earths diameter is 25,000
miles. So your blood vessels around the
equator 3 to 4 times!
• Keep your heart healthy...it's going to have to
beat about 3 BILLION times during your
lifetime!

4. Functions of the Circulatory System
• The circulatory system functions in the
– delivery of oxygen,
– Delivery of nutrient molecules
– Delivery of hormones
– removal of carbon dioxide, ammonia and other
metabolic wastes
• 3 parts of the Circulatory system
– pulmonary circulation - the lungs (pulmonary),
– coronary circulation - the heart (coronary),
– systemic circulation - the rest of the body
(systemic)

5. Parts of the Circulatory System
The circulatory System is divided into
three major parts:
• The Heart
• The Blood
• The Blood Vessels

7. The Blood Vessels
• In class we talked about three types of
blood vessels:
• Arteries – carry blood AWAY from heart
• Capillaries – Place were gas exchange
takes place
• Veins – Carry blood BACK to the heart

8. Vocabulary
• Arteries are tubes that carry blood
away from the heart
• Veins are tubes that return blood to
the heart
• Capillaries connect arteries and
veins. They are tiny tubes that
exchange food, oxygen and wastes
between blood and body cells.

9. The Heart
• The Heart is an amazing organ. It's job
is to pump your blood and keep the
blood moving throughout your body.
• Your heart beats about 100,000 times in
one day and about 35 million times in a
year. During an average lifetime, the
human heart will beat more than 2.5
billion times

10. Healthy Heart
• It is your job to keep your heart healthy and
there are three main things you need to
remember in order to keep your heart healthy.
– Exercise on a regular basis. Get outside and play.
Keep that body moving (walk, jog, run, bike, skate,
jump, swim).
– Eat Healthy. Stay away from high fat foods and
have your cholesterol checked regularly
– Don't Smoke! Don't Smoke! Don't Smoke! Don't
Smoke! Don't Smoke!