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Circulatory System
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• The Circulatory System
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1. What is the circulatory system?
• The body’s transport
system.
• Carries
–Oxygen
–Waste
–Nutrients to the
whole body
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2. What is another name for the
circulatory system?
• Cardio/vascular
system
– Cardio = Heart
– Vascular = Blood
vessels
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3. What are the three main
parts of the circulatory system?
a. heart
b. blood vessels
c. blood
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4. What is the job of the heart?
• To pump
blood
throughout
the body.
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5.
What is the job of the
blood vessels?
• To carry
blood
throughout
the body.
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Did you know that…..
* If you took all of the blood vessels out of
an average child, and laid them out in one
line, the line would be over 60,000 miles
long!
* An adult's vessels would be closer to
100,000 miles long!
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Arteries
•Carry blood
away from
the heart.
•Red blood =
oxygen
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Veins:
carry blood
from the body
back to the
heart & lungs
to get oxygen.

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6c. What are the three types of blood
vessels and each of their jobs?
 Capillaries:
The tiniest
blood vessels
that connect
the arteries
and veins.
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The Heart
• The Heart
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The Blood
The Blood
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Bone Marrow – Blood Production
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7. What are the 4 parts that
make up the blood?
a. Plasma
b. White blood
cells (WBC)
c. Platelets
d. Red blood
cells (RBC)
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8a. Plasma
• Liquid part of
the blood.
• Carries stuff.
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8b. Red Blood Cells
• Red blood
cells: carry
oxygen to and
carbon dioxide
away from the
cells.
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8c. White blood cells
• Helps fight
disease and
infection by
attacking
germs.
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8d. Platelets
• Platelets:
Helps blood
clot which
seals cuts and
prevents
excess to
blood loss.
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What is Blood Donation?
• 18-60 years old
• Takes about 30 min.
• Donate= every 8 weeks =56
days
• Platelet apheresis donors
may give every 7 days
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Why don’t people donate blood?
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9. What is a blood transfusion?
• To replace
blood with
blood from
another
person.
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Blood Types
• Blood Types
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10. What are the 4 blood types?
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11. Heart Disease
•
•
•
•
Hypertension
Stroke
Heart attack
Arteriosclerosis
Atherosclerosis
• Anemia
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Blood Pressure
• Blood Pressure
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11a. HYPERTENSION
• High Blood
Pressure
• Blood pressure
higher than
normal
• 120/80 normal
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11b. Stroke – Brain Attack
blood vessels
in the brain
are blocked
or burst
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11c. Heart Attack
• Blood flow to
the heart stops.
• Due to clogged
arteries.
–Smoking
–Stress
–Diet
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11d. Arteriosclerosis
• Artery walls
harden.
• Plaque builds up.
• Atherosclerosis
= cholesterol build
up.
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11f. Leukemia
• Is a type
of cancer
of the
blood or
bone
marrow.
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11e. Anemia
• Anemia is a
condition in which
the body does not
have enough
healthy red blood
cells.
• Red blood cells
provide oxygen to
body tissues.
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12. Ways to keep
healthy!
• Exercise Regularly
• Eat a balanced diet.
• Avoid Sugars
• Control blood pressure
• Avoid fatty foods
• Avoid Tobacco
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