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Biology: Circulatory System Web Quest
Name_______________________________
Directions: Go to the following websites to answer the questions.
Site #1 - http://kidshealth.org/parent/general/body_basics/heart.html
About the Heart and Circulatory System
1. What are the three main parts of the circulatory system?
A. _________________________ B. __________________________ C. _________________________
2. What is Pulmonary Circulation?
What is Systemic Circulation?
3. Click on "Body Basics: Heart". View the animation of blood flow through the heart and fill in the
blanks below.
When blood circulates in the body, it enters the heart through the ___________________________,
passes through to the _______________________________, and flows out through the
__________________________ to the _________________________ -where it picks up
_____________________ and gets rid of __________________________________. From the lungs,
blood returns to the ______________________________ and enters the
_____________________________ where it is pumped to the body through the _______________.
Site #2 http://www.sciencelearn.org.nz/Contexts/See-through-Body/Sci-Media/Animations-andInteractives/Label-the-heart
Site #3 - http://www.sumanasinc.com/webcontent/animations/content/human_heart.html
Go through the steps of the animation to answer the questions below: As you navigate through the
slides, you may press the “PLAY” button to hear the audio that accompanies the text.
1. The heart is referred to as what of the circulatory system?
Describe how the heart is divided into sections.
2. OXYGENATED blood comes to the heart from the _____________________ and enters the
______________ side of the heart in which type of vessel? _______________________ (toward the
heart) These are the only veins in the body that carry blood with oxygen. The rest carry
__________ (the waste of cell respiration).
3. What side of the heart does oxygenated blood enter first?
4. What is the largest artery called and what is its job? ( info on slide 4 and 6)
5. What are valves responsible for preventing?
6. What kind of blood do arteries carry?
7. Where (what vessel) does oxygen and carbon dioxide gas exchange occur?
Site #4 - http://www.fi.edu/learn/heart/index.html
Home is where the heart is…
1. How many times during the average person’s lifetime does the heart beat?
Now click on “development” (in the paragraph or at the top of the page)
2. About how large is the human heart?
3. How large is the heart during fetal development?
4. What happens to the average heart rate from infancy to 18 years?
Now click on “Structure”…
5. What is a heart shaped like?
6. How many cavities are found in the human heart? What are they called?
7. What is the wall called that divides the heart?
8. Where are the following valves located?
a. Mitral valve-
b. Tricuspid valve9. What are the names of the two largest veins?
10. What does “vena cava” mean?
11. Where is your heart located? What is that cavity called?
Site #5 –
http://www.elearningforkids.org/Courses/Liquid_Animation/Body_Parts/Heart_and_Circulation/index.html
1. Why can having low blood pressure be just as dangerous as having high blood pressure?
2. Why is the blood in your arteries bright red?
3. As arteries get farther and farther away from the heart they get smaller and smaller and
branch into tiny blood vessels called _______________________________________.
4. What is the function of capillaries in your body?
5. Why does the capillary change color as it passes buy your body cells?
6. Veins collect blood from ____________________________ and bring it back to the heart.
7. Why is the blood in veins dark red (blue)?
8. Inside your veins there is ___________________________ pressure.
(High or low?)
Site #6 - http://www.e-learningforkids.org/Courses/Liquid_Animation/Body_Parts/Blood/index.html
Note: You will have to click "Replay" to view the function of each part of blood.
1. What does each component of blood look like?
a. Blood Cells b. White Blood Cells c. (Monocytes/Macrophages) d. Platelets See the facts below the blood vessel to answer the questions below.
2. Where are blood cells made?
3. True or False: White blood cells can leave the blood vessels and travel into your tissues.
4. What are the four blood types?
5. Which blood type is most common? _______________________
6. What is "blood count?"
Click on "Yucky Bites"
7. What is in pus?
Site #7 - http://www.sciencekids.co.nz/sciencefacts/humanbody/blood.html
Facts about Blood
1. Blood makes up around _________________ of the weight of a human body.
2. Blood contains ________________________, _______________________ and ________________________.
3. These blood cells float in a yellow liquid called blood _______________________. Blood
________________ is made up of ______________ water and also contains various nutrients, electrolytes,
gases, proteins, glucose and hormones.
Site #8 - http://www.medindia.net/know_ur_body/cirsystem.asp
DID YOU KNOW?
1. Every second, __________________________ are destroyed in the human body.
2. Human blood is _____________________________. It is the ________________________; a pigment present
in the __________________________that is responsible for the ______________color of the blood.
3. ________________________ is nothing but the sound produced by the closure of
____________________of the heart when the blood is pushed through its chamber.
4. A _________________________'s heart beat is faster than that of a ________________________'s.