[Free Registration/Login may be required to access all resource tools.] Covers the pathways of the pulmonary and systemic circulations.

[Free Registration/Login may be required to access all resource tools.] Almost all of us have had a sore throat at some time. Maybe you had your tonsils out when you were younger? Why? Your tonsils are two lumps of tissue that work as...

With this resource, visitors can learn how the heart works and about the parts of the heart, the circulation of blood and heart health. The resource is also available in Spanish. Includes audio.

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will begin to identify pathways of the pulmonary and systemic circulations.

This is a student led exploration of the systems of the human body through art and self-expression. Groups will cooperatively develop a poster, the size of a fifth-grade student, and will accurately depict the assigned system of the...

A complete reference tool that serves as an illustrated resource for presenting information on heart conditions. Content includes information on what they are, how the heart works, diagnosis, congenital defects, treatment, and long term...

[Free Registration/Login may be required to access all resource tools.] Covers the pathways of the pulmonary and systemic circulations.

[Free Registration/Login may be required to access all resource tools.] An overview of cardiovascular diseases and their risk factors.

This video segment describes the basics of the circulatory system: how the heart pumps the blood that carries oxygen and nutrients throughout the body. [3:14]

[Free Registration/Login may be required to access all resource tools.] Your cardiovascular system has many jobs. At times the cardiovascular system can work like a pump, a heating system, or even a postal carrier. To do these tasks,...

This resource from Khan Academy provides information about hypertension, a circulatory system disease. Students will learn the basic facts about this disease.

Online interactive game consists of three consecutive episodes. The storyline addresses three different body systems and their functions while teaching about alcohol's interaction with each of them, misconceptions about alcohol, medical...

How does blood supply your body with the nourishment it needs? This site focuses on systemic circulation. Learn more about this fascinating part of your body when you check out this resource.

This thorough resource provides listing of ten unique characteristics peculiar to the cardiovascular system along with an examination of these ten factors individually.

Causes of heart failure, signs and characteristics of heart failure, pathologic conditions resulting in heart failure, and more are the topics addressed in this thorough resource.

[Free Registration/Login may be required to access all resource tools.] In the following online lesson students will explain how the heart pumps blood throughout the body.

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.

[Free Registration/Login may be required to access all resource tools.] The blood vessels are an important part of the cardiovascular system. They connect the heart to every cell in the body. Arteries carry blood away from the heart,...

[Free Registration/Login may be required to access all resource tools.] Describes how the heart pumps blood throughout the body.

A comprehensive resource on earthworms, offering the following sections: "Facts about Earthworms," "Migration and Annual Cycle," and "Lessons Activities and Information."

[Free Registration/Login may be required to access all resource tools.] Discusses the different types of blood vessels and their roles.

[Free Registration/Login may be required to access all resource tools.] What does the heart look like? How does it pump blood? Learn more about the heart in this learning module produced by CK-12.

This resource provides an overview about heart disease.

Come and discover more about reptiles and amphibians when you explore this awesome resource. This site is filled with useful links.