The Circulatory System

1
The Circulatory System

• An fun journey through the bodies system of pumps
  and pipes that make the blood flow through our
  bodies!!

2
WHAT YOU SHOULD KNOW BY THE END OF THE PPT!!!

• Define what the purpose of the circulatory system
  is.
• Be able to list the organs and vessels involved
  in the circulatory system by using drawing,
  diagramming, or explaining in writing or
  verbally, in order.
• Describe the function of all the elements
  involved in the system (Heart, Lungs, Arteries,
  Veins, and Capillaries).
• Compare and Contrast Veins and Arteries

3
SO WHAT IS IT?

• The circulatory system is a system of organs and
  vessels in the body that is used to transport
  blood throughout the body.

Cool link to the Circulatory System
4
To Get You Thinking

• If blood has to be pumped all over the body, what
  very strong organ do you think has enough power
  to make that happen?

5
To Get You Thinking

• What are the main types of vessels
• through which the blood travels?
• (Hint, there are 3 types)

6
More Thinking

• The blood has to carry oxygen
• to all of the tissues in the
• body, where does it pick this
• oxygen up?

7
Elements of the Circulatory System

• There are 5 main elements involved
• in the circulatory system.
• Can anybody name them before we get started?
• Heart, Lungs, Arteries, Capillaries, and
• Veins

8
The Heart in depth

• The human heart has 4 distinct chambers, 2
  chambers on the left side and 2 chambers on the
  right side.

9
Heart in Depth

• right side -Right Atrium and Right Ventricle
• Left side- Left Atrium and Left Ventricle
• The picture is of the heart as if you were
  looking at somebody else.

10
Specific Functions of the Heart

• Right Atrium-takes deoxygenated blood from the
  rest of the body and pumps it to the
  ?

11
Specific Functions of the Heart

• Right Ventricle- takes the blood from the right
  atrium and pumps it to the lungs via the
  pulmonary artery to become oxygenated.

12
Specific Functions of the Heart

• Left Atrium- takes oxygenated blood from the
  pulmonary veins coming back from the lungs and
  pumps the blood to the left ventricle

13
Specific Functions of the Heart

• Left Ventricle- takes the oxygenated blood from
  the left atrium and pumps it too the whole body
• Look at the left and right ventricles, which one
  is bigger and has more muscle? Why?

14
Functions of the Lungs

• What are the functions?
• To supply the blood with much needed oxygen.
• The help rid the blood of any carbon dioxide and
  toxic gases

15
Specific Functions Continued

• Arteries- Carries oxygenated blood away from the
  heart to all of the bodies tissues
• Veins- Carries deoxygenated blood from the
  tissues back to the heart

16
Specific Functions Continued

• Capillaries Tiny vessels that give the tissues
  oxygen and nutrients, and take up any wastes. In
  between the veins and arteries.
• If veins are blue and arteries are red, why would
  capillaries be purple?

17
Compare and Contrast the 3 Types of Vessels
18
We now know it contains the heart, lungs, veins,
arteries and capillaries

• There is a very specific order which the blood
  travels.
• Blood goes into the left atrium-- Left Ventricle
  ? Arteries throughout the body? Capillaries ?
  Veins throughout the body ? Right atrium ? Right
  Ventricle -- Pulmonary Artery ? Lungs ?
  Pulmonary Vein? Left atrium ? then it starts all
  over again

19
Question?

• What would happen if the blood didnt flow
  properly?
• Check this site out

20
Organizing the flow
21
SummaryDiagram and Label
22
Summary Vessels
23
Summary
24
Also can you?

• Define what the purpose of the circulatory system
  is.
• Be able to list the organs and vessels involved
  in the circulatory system by using drawing,
  diagramming, or explaining in writing or
  verbally, in order.
• Describe the function of all the elements
  involved in the system (Heart, Lungs, Arteries,
  Veins, and Capillaries).
• Compare and Contrast Veins and Arteries

25
Sources, all for educational purposes only

• http//www.webdesigntutorials.net/tutorials/photos
  hop_tutorials/images/heart/heart_pic9.gif
• http//library.thinkquest.org/05aug/01883/introtoc
  ircsys.htm
• http//www2.gsu.edu/bioasx/humanheart.gif
• http//faculty.washington.edu/kepeter/119/images/b
  eef_heart1.jpg
• http//biosphere.biologydaily.com/help/images/a366
  024055e25bfcd7ffb9005e0fcaa0-5409.jpeg
• http//www.wisc-online.com/objects/index_tj.asp?o
  bjIDAP12504