Dohyeon Kim
7th period, Biology
Table of Contents
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What is Circulatory System?
Parts of blood circulatory system
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Heart
Blood
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Blood Vessels
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Arteries
Veins
Capillaries
Diseases
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Red Blood Cell
White Blood Cell
Platelet
Plasma
Heart Attack
High Blood Pressure
Stroke
How to promote?
Amazing Facts: Did you know…?
For further information…
Self-Check
<Circulatory System>
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What is Circulatory System?
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Blood transportation from one part to
another
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Removes waste materials
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Delivers essential materials
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Carbon dioxide
Waste
Oxygen
Food
Continuous flowing of blood through
blood vessel
Heart, lung, and blood vessels work
together
About 30 seconds to complete one cycle
of circulation around the body.
An average of 5 liters of blood is traveling
Click Animation of Circulatory System
<Circulatory System>
3
How does it work?
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Vein carries
oxygen-rich
blood to the
heart
Remember!!:
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In = Air + Oxygen
Out = Air + Carbon-dioxide
Simple Diagram
No-oxygen
blood goes to
the lung for
excretion
The heart
pumps the
blood around
the body
<Circulatory System>
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Overview
Circulatory
System
Blood
Red Blood
Cells (RBCs)
White Blood
Cells (WBCs)
Heart
Plasma
Blood Vessel
Platelet
<Circulatory System>
Capillaries
Veins
Arteries
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Parts of Circulatory System
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Three basic different parts in
circulatory system
– Heart Part
– Blood part
– Blood vessel part
Three basic different parts in
blood vessel part
– Arteries
– Capillaries
– Veins
<Circulatory System>
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The Heart
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Two sided, four chambered pump
Made up mostly of muscles
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Size of your fist
Sends blood around your body
Left side (Systemic circulation)–
receives blood/pumps to the lungs
Right side (Pulmonary circulation)–
pumps to the body/receives blood from
the lungs
Atrium – the two top chambers
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Fill with blood returning to the heart from the body.
The heart has a left/right atrium
Ventricle – the two bottom chambers
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Never get tired unlike other muscles
Squirt out the blood to the body and lungs
Atrium and ventricles work as a team
<Circulatory System>
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The Blood
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Pumped by the heart
Always circulates in same
direction
Carries nutrients, water,
oxygen and waste to and from
your body cells.
Made up of liquid, solid and a
little amount of oxygen and
carbon dioxide.
What is in the blood?
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White Blood Cells
Platelet
Red Blood Cells
Plasma
<Circulatory System>
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Red Blood Cells
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Performs the most important blood duty
Can live up to 120 days
One drop of blood contains millions of RBCs
Bloods are red, because…
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they contain a chemical called hemoglobin
How does RBCs work?
①
②
③
Oxygen attaches to hemoglobin
Hemoglobin releases oxygen to the cells as they
travels throughout the body
The no-oxygen hemoglobin bonds with CO2 and
transporting it away
<Circulatory System>
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White Blood Cells
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“Germ Fighter”
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Attack germs and engulf them
Number of WBC increases when they need to
fight
White Blood Cells
Much less numerous than RBCs (1:700)
Short life cycle – a few days to a few
weeks
One drop of blood contains 7,00025,000 of WBCs
<Circulatory System>
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Plasma
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About 90% is water
55% of blood
Straw-colored and clear liquid
Essential ingredient for human survival
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Salts and minerals
Transports:
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Plasma
Hormones
Carbon-dioxide
Contains antibodies
<Circulatory System>
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Platelet
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Irregularly shaped and colorless
Forms clots to stop bleeding
Many substances help platelet to form clots
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Calcium and Vitamin K must be present in blood
Example of blood clot:
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Platelet
Internal Blood Clot – bruises
External Blood Clot – scab
Blood clot leads to healing, but in some
cases, it can be very dangerous
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Blood clot in blood vessel blocks blood flows and can
lead to brain damage, stroke, and etc.
<Circulatory System>
12
The Blood Vessel
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Tubes that circulate blood
Three varieties:
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Arteries
Capillaries
Veins
Provides two important means of
measuring vital health statistics:
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Pulse
Blood Pressure
<Circulatory System>
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Arteries
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Deliver oxygen-rich blood to the
capillaries
Tough outside, smooth inside
Has three layers:
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Outer layer of tissue
Muscular – elastic and very strong
Inner layer of epithelial cells – very smooth
that blood can flow through easily
Artery expands as it fills with blood
when heart beats.
Always expands and contracts, but
NOT always same pulse speed.
The rhythm between heart and artery
results in efficient circulatory system
<Circulatory System>
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Vein
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Not strong as arteries
Has three layers:
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Outer layer of tissue
Muscular
Inner layer of epithelial cells: thinner than
arteries’ layer, less tissues
Receives blood from capillaries
after the exchange of oxygen and
CO2
Transports waste-rich blood (no
oxygen) back to lungs and heart
Vein valve – necessary to keep
blood flowing toward the heart
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Also necessary to flow against the force of
gravity
<Circulatory System>
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Capillaries
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Connects arteries and veins
Very thin and fragile
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So thin that blood cells can only pass when
they are in single file
Only one epithelial cell thick
Occurs the exchange of oxygen and
carbon dioxide
Arteries and veins run parallel with
web-like network of capillaries
(shown in picture -->)
Release excess of body heat
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Blood delivers the heat to the capillaries
Capillaries release it to the tissue
<Circulatory System>
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What if something goes wrong?
<Circulatory System Diseases>
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Circulatory diseases are the
leading cause of death worldwide
Include a wide range of disorders
that affect the heart and the blood
vessels
Cause disease in all other tissues
and organs of the body.
The most common circulatory
diseases are:
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<Protect your heart>
Heart Attack
High Blood Pressure
Stroke
Calling 911 is the fastest way to
get lifesaving treatment
Short clip of misusing heart
<Circulatory System>
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Heart Attack
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Occur when the blood flow to a part of
the heart is blocked
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Warning signs are:
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Discomfort in upper body
Shortness of breath
Nausea
Treatment:
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Usually occur by blood clots and plaque, fatty
deposits
Call 911 immediately (it is the best way)
Preventions:
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Eat Healthy,
Quit Smoking,
Exercise, and more!
<Circulatory System>
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High Blood Pressure
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The pressure in arteries is above
the normal range.
Danger is that:
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No specific symptoms
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“The Silent Killer”
Caused by another disease and
alcohol addiction
Treatments:
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you usually can’t tell that you have high
blood pressure.
Medication
Exercise
Check blood pressure regularly
Preventions:
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Change lifestyle
<Circulatory System>
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Stroke
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Two types of stroke
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Warning signs are:
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Sudden weakness of the face, arm or leg,
Sudden dizziness, loss of balance
Sudden, severe headache with no known
cause
Treatments are:
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Blood clots (80% of stroke)
Blood vessel burst (20% of stroke)
Surgery
Hospital care
Medications
Preventions:
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Eat Healthy
Quit Smoking
<Circulatory System>
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How to Promote?
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Start with Healthy Diet
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Exercise Regularly and Sensibly
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Eat modestly and wisely
Uncooked vegetables and fruits
Strengthens your system and reduces
disease risk
Quit Smoking
The Extra Edge of Supplements
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Vitamins
Minerals
Hormone
<Circulatory System>
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Amazing Facts: Did you know…?
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One drop of blood contains a half a drop
of plasma, 5 MILLION Red Blood Cells,
10 Thousand White Blood Cells and 250
Thousand Platelets.
You have thousands of miles of blood
vessels in your body. You could wrap
your blood vessels around the
equator TWICE!
Keep your heart healthy...it's going to
have to beat about 3 BILLION times
during your lifetime!
Some capillaries are 50 times
thinner than a baby’s hair.
<Circulatory System>
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For further information……
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Animation #1 – Circulatory System
Animation #2 – Circulatory System
Info #1 - Detailed Information
Heart Attack/Stroke warning signs
American Heart Association
<Circulatory System>
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Self-Check
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2.
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5.
6.
Platelet is very important part of blood. Sometimes, however, it can be very dangerous too. Why?
Check your answer
The circulatory system is composed of the…
a. lung, heart, and brain
b. lung, blood vessels, and heart
c. heart, arteries, and veins
d. heart, blood, and blood vessels
The straw-colored fluid that is 90% water and 10% dissolved substances is called…
a. hemoglobin
b. blood
c. platelet
d. plasma
Stroke mostly occurs by…
a. Blood Vessel Burst
b. Blood Clots
c. both a and b
Write the process of circulatory system in three steps.
Check your answer
Write at least two ways to promote your circulatory system.
Check your answer
<Circulatory System>
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The End
THE END!
Thank You
<Circulatory System>
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How did you do…?
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The answer is…
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Sometimes, platelet forms blood clot in blood vessels, which can block the way of
blood. When the blood vessels are blocked by the blood clots, you can have high blood
pressure, heart disease, and more.
Click the box to go back to self-check
Click the box to find information about this question
<Circulatory System>
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How did you do…?
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The answer is…
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1. Vein carries oxygen-rich blood to the heart
2. The heart pumps the blood around the body
3. No-oxygen blood goes to the lung for excretion
Click the box to go back to self-check
Click the box to find information about this question
<Circulatory System>
27
How did you do…?
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Two of the answers should be…
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1. quit smoking
2. eat healthy
3. exercise regularly
Click the box to go back to self-check
Click the box to find information about this question
<Circulatory System>
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Correct!
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The answer is…
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d. heart, blood, and blood vessels
Click the box to go back to self-check
Click the box to find information about this question
<Circulatory System>
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Correct!
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The answer is…
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d. plasma
Click the box to go back to self-check
Click the box to find information about this question
<Circulatory System>
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Correct!
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The answer is…
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B. blood clot
Click the box to go back to self-check
Click the box to find information about this question
<Circulatory System>
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Wrong!
Try Again!
Go back to self-check
<Circulatory System>
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Platelet
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Irregularly shaped and colorless
Forms clots to stop bleeding
Many substances help platelet to form clots
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Calcium and Vitamin K must be present in blood
Example of blood clot:
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Platelet
Internal Blood Clot – bruises
External Blood Clot – scab
Blood clot leads to healing, but in some
cases, it can be very dangerous
–
Blood clot in blood vessel blocks blood flows and can
lead to brain damage, stroke, and etc.
Back to Self-Check
<Circulatory System>
33
Parts of Circulatory System
•
•
Three basic different parts in
circulatory system
– Heart Part
– Blood part
– Blood vessel part
Three basic different parts in
blood vessel part
– Arteries
– Capillaries
– Veins
Back to Self-Check
<Circulatory System>
34
Plasma
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•
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About 90% is water
55% of blood
Straw-colored and clear liquid
Essential ingredient for human survival
–
•
Salts and minerals
Transports:
–
–
•
Plasma
Hormones
Carbon-dioxide
Contains antibodies
Back to Self-Check
<Circulatory System>
35
How does it work?
•
Remember!!:
–
–
Vein carries
oxygen-rich
blood to the
heart
In = Air + Oxygen
Out = Air + Carbon-dioxide
Simple Diagram
No-oxygen
blood goes to
the lung for
excretion
The heart
pumps the
blood around
the body
<Circulatory System>
Back to Self-Check
36
How to Promote?
•
Start with Healthy Diet
–
–
•
Exercise Regularly and Sensibly
–
•
•
Eat modestly and wisely
Uncooked vegetables and fruits
Strengthens your system and reduces
disease risk
Quit Smoking
The Extra Edge of Supplements
–
–
–
Vitamins
Minerals
Hormone
Back to Self-Check
<Circulatory System>
37