What must humans do to keep the circulatory system working?

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The Circulatory System Introduction. The circulatory system consists of blood, a heart, and blood vessels. ... Human blood has two parts, liquid (plasma) and cells. - Read more

Link to an illustrated discussion of the anatomy of the human circulatory system. ... of a capillary, the blood pressure is ... in blood supply to the working ... - Read more

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What must humans do to keep the circulatory system working? resources

What Organs Are in the Human Circulatory System? | eHow

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Circulatory system - Wikipedia, the free encyclopedia

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The Circulatory System - www.globalclassroom.org

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Circulatory System - University of Cincinnati

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Circulatory System - About.com Biology

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Circulatory System - About.com Biology

Information and resources pertaining to the heart and the circulatory system ... body do have muscular ... > Types of Circulatory Systems > Anatomy of the Heart ...

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Biology4Kids.com: Animal Systems - Rader's BIOLOGY 4 KIDS ...

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The Human Heart: An Online Exploration from The Franklin ...

From the moment it begins beating until the moment it stops, the human heart works tirelessly. In an average lifetime*, ... Wander through the weblike body systems.

Keeping Healthy - Heart Rate Exercises - Science Games ...

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HowStuffWorks "How Your Heart Works"

The human heart. Nucleus Medical Art ... HowStuffWorks.com. 10 August ... Do you know what ...

Your Body's Systems | FactMonster.com - Fact Monster ...

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BrainPOP | Health | Learn about Respiratory System

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The Heart and Circulation of Blood - LSA @ CU Boulder

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Anatomy: Circulatory System - eThemes

Fact Monster: The Circulatory System. This resource can help younger students to learn about how the circulatory system works. NOTE: This site includes banner ads ...

Body Systems WebLessons - Wyndmere Public School ...

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Circulatory System Theme Page - CLN

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Circulatory System - State University of New York

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Bio 102 - The Circulatory System - Prof. Atsma © 2005

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Circulatory system: MedlinePlus Medical Encyclopedia Image

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Human Respiratory System and Lungs; How They Work

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human respiratory system (physiology) :: Control of ...

An important characteristic of the human respiratory system is its ability to adjust breathing patterns to changes in both the internal milieu and the external ...

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The Heart and the Circulatory System - Access Excellence

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Human Urinary System, Kidney & Bladder Diagrams ...

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autonomic nervous system - definition of autonomic nervous ...

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Exercise - definition of Exercise by Medical dictionary

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Cardiovascular System - Human Veins, Arteries, Heart

Explore the anatomy of the human cardiovascular system (also known as the circulatory system) ... Platelets do not contain a nucleus and only survive in the body for ...

Prevent diabetes problems: Keep your heart and blood ...

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Body System WebQuest - Cedar Rapids Community School District

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- National Digestive Diseases Information ...

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How Does the Circulatory System Work - Buzzle

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Heart and Circulatory System - KidsHealth

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How Do the Respiratory & Cardiovascular System Work ...

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Evolution of the Human Heart - About.com Evolution

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How the Circulatory System Works - High Blood Pressure ...

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Human Circulatory System - Buzzle

The human circulatory system or the cardiovascular system circulates blood and other essential nutrients throughout the body with the help of blood vessels.