Dohyeon Kim7th period, Biology

Table of Contents

• What is Circulatory System?• Parts of blood circulatory system

– Heart– Blood

• Red Blood Cell• White Blood Cell• Platelet• Plasma

• Blood Vessels– Arteries– Veins– Capillaries

• Diseases– Heart Attack– High Blood Pressure– Stroke

• How to promote?• Amazing Facts: Did you know…?• For further information… • Self-Check

2<Circulatory System>

What is Circulatory System?

• Blood transportation from one part to another– Removes waste materials

• Carbon dioxide• Waste

– Delivers essential materials• 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

3<Circulatory System>

How does it work?

• Remember!!:– In = Air + Oxygen– Out = Air + Carbon-dioxide

<Circulatory System> 4

Simple Diagram

Overview

<Circulatory System> 5

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

6<Circulatory System>

The Heart

• Two sided, four chambered pump• Made up mostly of muscles

– Never get tired unlike other muscles

• 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– Fill with blood returning to the heart

from the body.– The heart has a left/right atrium

• Ventricle – the two bottom chambers– Squirt out the blood to the body and l

ungs

• Atrium and ventricles work as a team

7<Circulatory System>

The Blood

• 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?– White Blood Cells– Platelet– Red Blood Cells– Plasma

8<Circulatory System>

Red Blood Cells

9<Circulatory System>

• Performs the most important blood duty

• Can live up to 120 days• One drop of blood contains

millions of RBCs• Bloods are red, because…

• they contain a chemical called hemoglobin

• How does RBCs work?① Oxygen attaches to hemoglobin② Hemoglobin releases oxygen to the

cells as they travels throughout the body

③ The no-oxygen hemoglobin bonds with CO2

and transporting it away

White Blood Cells

White Blood Cells

10<Circulatory System>

• “Germ Fighter”• Attack germs and engulf them• Number of WBC increases

when they need to fight

• Much less numerous than RBCs (1:700)• Short life cycle – a few days to a few

weeks• One drop of blood contains 7,000-

25,000 of WBCs

Plasma

• About 90% is water• 55% of blood• Straw-colored and clear liquid• Essential ingredient

for human survival– Salts and minerals

• Transports:– Hormones– Carbon-dioxide

• Contains antibodies

11<Circulatory System>

Plasma

Platelet

• Irregularly shaped and colorless• Forms clots to stop bleeding• Many substances help platelet to

form clots– Calcium and Vitamin K must be present i

n blood

• Example of blood clot:– 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.

12<Circulatory System>

Platelet

The Blood Vessel

• Tubes that circulate blood• Three varieties:

– Arteries– Capillaries– Veins

• Provides two important means of measuring vital health statistics:– Pulse– Blood Pressure

13<Circulatory System>

Arteries

• Deliver oxygen-rich blood to the capillaries

• Tough outside, smooth inside• Has three layers:

– 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

14<Circulatory System>

Vein

• Not strong as arteries• Has three layers:

– 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– Also necessary to flow against

the force of gravity15<Circulatory System>

Capillaries

• Connects arteries and veins• Very thin and fragile

– 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– Blood delivers the heat to the

capillaries– Capillaries release it to the t

issue16<Circulatory System>

What if something goes wrong?<Circulatory System Diseases>• 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:– Heart Attack– High Blood Pressure– Stroke

• Calling 911 is the fastest way to get lifesaving treatment

17<Circulatory System>

Short clip of misusing heart

<Protect your heart>

Heart Attack

• Occur when the blood flow to a part of the heart is blocked– Usually occur by blood clots and plaq

ue, fatty deposits

• Warning signs are:– Discomfort in upper body– Shortness of breath– Nausea

• Treatment:– Call 911 immediately (it is the best

way)

• Preventions:– Eat Healthy,– Quit Smoking, – Exercise, and more!

18<Circulatory System>

High Blood Pressure

• The pressure in arteries is above the normal range.

• Danger is that:– you usually can’t tell that yo

u have high blood pressure.

• No specific symptoms– “The Silent Killer”

• Caused by another disease and alcohol addiction

• Treatments:– Medication– Exercise– Check blood pressure regularly

• Preventions:– Change lifestyle

19<Circulatory System>

Stroke

• Two types of stroke– Blood clots (80% of stroke)– Blood vessel burst (20%

of stroke)

• Warning signs are:– Sudden weakness of the face, ar

m or leg, – Sudden dizziness, loss of balan

ce– Sudden, severe headache with no

known cause

• Treatments are:– Surgery– Hospital care– Medications

• Preventions:– Eat Healthy– Quit Smoking

20<Circulatory System>

How to Promote?

• Start with Healthy Diet– Eat modestly and wisely– Uncooked vegetables and fruits

• Exercise Regularly and Sensibly– Strengthens your system and red

uces disease risk

• Quit Smoking• The Extra Edge of Supplemen

ts– Vitamins– Minerals– Hormone

<Circulatory System> 21

Amazing Facts: Did you know…?

• 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.

22<Circulatory System>

For further information……

• Animation #1 – Circulatory System

• Animation #2 – Circulatory System

• Info #1 - Detailed Information

• Heart Attack/Stroke warning signs

• American Heart Association

23<Circulatory System>

Self-Check

1. Platelet is very important part of blood. Sometimes, however, it can be very dangerous too. Why?

Check your answer2. 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 vessels3. The straw-colored fluid that is 90% water and 10% dissolved substances is

called…a. hemoglobin b. bloodc. platelet d. plasma

4. Stroke mostly occurs by…a. Blood Vessel Burst b. Blood Clots c. both a and b

5. Write the process of circulatory system in three steps. Check your answer

6. Write at least two ways to promote your circulatory system. Check your answer

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The End

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THE END!

Thank You

How did you do…?

• The answer is…– 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> 26

How did you do…?

• The answer is…– 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…?

• Two of the answers should be…– 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> 28

Correct!

• The answer is…– 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> 29

Correct!

• The answer is…– d. plasma

Click the box to go back to self-check

Click the box to find information about this question

<Circulatory System> 30

Correct!

• The answer is…– B. blood clot

Click the box to go back to self-check

Click the box to find information about this question

<Circulatory System> 31

Wrong!

Try Again!

Go back to self-check

<Circulatory System> 32

Platelet

• Irregularly shaped and colorless• Forms clots to stop bleeding• Many substances help platelet to

form clots– Calcium and Vitamin K must be present

in blood

• Example of blood clot:– 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.

33<Circulatory System>

Platelet

Back to Self-Check

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

34<Circulatory System>

Back to Self-Check

Plasma

• About 90% is water• 55% of blood• Straw-colored and clear liquid• Essential ingredient for human

survival– Salts and minerals

• Transports:– Hormones– Carbon-dioxide

• Contains antibodies

35<Circulatory System>

Plasma

Back to Self-Check

How does it work?

• Remember!!:– In = Air + Oxygen– Out = Air + Carbon-dioxide

<Circulatory System> 36

Simple Diagram

Back to Self-Check

How to Promote?

• Start with Healthy Diet– Eat modestly and wisely– Uncooked vegetables and fruits

• Exercise Regularly and Sensibly– Strengthens your system and

reduces disease risk

• Quit Smoking• The Extra Edge of

Supplements– Vitamins– Minerals– Hormone

<Circulatory System> 37

Back to Self-Check