Overview of the cardiovascular system with labeled diagrams and reviews of the heart, torso, arm, leg, and blood, available through the links on the right.

Self-guided learning activity where students learn about the structure and function of the human cardiovascular system. There is a short quiz at the end of the lesson to check for understanding.

Detailed information about the many functions and components of the cardiovascular system. Also looks at the lymphatic system and cardiovascular disease.

Understand the structure and function human cardiovascular system.

A comprehensive guide to the various types of circulatory systems, including the vertebrate cardiovascular system, the vertebrate vascular systems, the heart, the vascular system, blood, the lymphatic system, learning objectives and...

Through informational text along with printable notes, animations, video clips, and practice problems, students discover how the structures of the cardiovascular and respiratory systems work together and function as one. Provides lots of...

Thorough overview of hypertension. Includes information on symptoms, treatment, prevention, and much more.

Heart rates can be determined by the amount of physical activity your body is engaging in. The more physically active you are, the faster your heart beats. You can measure the rate your heart is beating by taking your pulse. This science...

In this lesson plan site, the students will learn about the circulatory system and perform an experiment where they take their pulse after various activities.

A wealth of information on arrhythmias. Find out about the kinds of arrhythmias, causes, and treatments.

The Merck Manual describes the human heart and shows how the heart pumps blood. Includes interactive 3D models.

This comprehensive site from Kids Health provides an indepth look at the characteristics of blood, its functions, and its importance. This site is a great starting point for understanding blood. Also includes links to similar sites.

A detailed description of the human heart and its parts.

Use this site to find out why your body needs blood with this quick fact sheet. You can also try an experiment with your pulse.

Article that explains what two things control our blood pressure. Part of a larger page on Mathematics and Blood Flow. Includes a quiz on pressure difference and resistance at bottom of the page.

One-page overview containing a detailed labeled diagram of the anatomy of the heart including the valves, conduction system, and circulatory system.

How can vitamin C help prevent heart problems and improve the health of those who already have vascular disease? Which animals are unable to produce their own vitamin C? How does vitamin C deficiency affect the body? Learn the answers to...