An image of heart and blood vessles; veins are blue and arteries are redCardiovascular Foundations

Preparations for Interpreting about the Cardiovascular System

Activity 1.3

A Lecture on the Cardiovascular System from the Khan Academy
Other Resources (Optional)

Information from

The following link provides a basic overview of how the circulatory system works.


In its most basic form, the circulatory system is a simple loop which starts, and ends, at the heart. It is also a closed system in the sense that blood does not enter or leave the system during its journey from the heart, to the body, and back again. In such a system, a continuous flow of the same liquid can be pumped through the loop again and again.


How do you return to your study packet?

Adobe Reader icon

Go back to Page 8 in the PDF using Acrobat Reader. (You will need to switch programs or apps.)

Look for this icon (or one similar to this depending on your version of Adobe Reader.)

Share This