Other
World Invisible: The Human Circulatory System: Blood Circulation
A labeled diagram of the major veins and arteries in the human body.
OpenStax
Open Stax: Anatomy & Physiology: Circulation and the Central Nervous System
Students learn about the vessels that supply the central nervous system with blood.
CK-12 Foundation
Ck 12: Life Science: Blood Vessels
[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,...
The Association of the British Pharmaceutical Industry
Abpi: Heart and Circulation
A complete, self-paced lesson on the heart and circulation. Students work their way through illustrations and animated tutorials, and answer review questions along the way. There is a self-checking quiz at the end of the lesson.
Earth Life
Earth Life: Blood
A very good description of the blood and circulatory systems of mammals and the important role that blood plays in the physiology of animals.
CK-12 Foundation
Ck 12: Life Science: Circulation and the Lymphatic System
[Free Registration/Login may be required to access all resource tools.] The lymphatic system is a network of vessels and tissues that carry a clear fluid called lymph. The lymphatic system works with the cardiovascular system to return...
BBC
Bbc: Gcse Bitesize: The Challenges of Size in Animals
This lesson focuses on blood including it's functions including transporting materials around the body and protecting against disease. It explains the components of blood and the functions of each and offers a link to an assessment.
The Association of the British Pharmaceutical Industry
Abpi: The Heart and Circulation
Educational site provides an overview of the heart and circulation. Included, are six sections and a quiz.
BBC
Bbc Schools: Ks2 Bitesize: Science: Living Things: Circulation
Check Steve's cardiovascular health before he starts filming his dangerous wildlife special. Following the activity, read more about the heart, and then take a quick quiz to check for understanding.
TeachEngineering
Teach Engineering: Body Circulation
Middle schoolers are introduced to the circulatory system, the heart, and blood flow in the human body. Through guided pre-reading, during-reading and post-reading activities, students learn about the circulatory system's parts,...
WebMD
Web Md: How a Health Professional Measures Blood Pressure
This resource lists the steps a health professional usually follows in measuring blood pressure. Also listed are factors that may cause a measurement to be inaccurate.
CK-12 Foundation
Ck 12: Life Science: Blood Pressure
[Free Registration/Login may be required to access all resource tools.] The health of your whole body depends on the good health of your cardiovascular system. One measure of the health of your cardiovascular system is blood pressure....
Healthline Media
Medical News Today: Articles: Hypertension: What Is High Blood Pressure?
Learn about high blood pressure, its causes, symptoms, and treatment. Also learn how blood pressure is measured and controlled.
Biology Pages
Kimball's Biology Pages: Anatomy of the Human Circulatory System
This site is produced by John W. Kimball, a retired biology teacher who wrote the textbook that these pages came from. The excerpt explains the different parts of the circulation system and how they function. Includes great pictures!
Scholastic
Scholastic: Study Jams! Science: The Human Body: Circulatory System
An animated video, with an accompanying quiz, explains how the circulatory system works.
PBS
Nova Online: Troubled Hearts
This site contains pictures of hearts that have some type of problem such as narrowing of the arteries and muscle damage from a heart attack. There is also a terrific picture of the coronary artery system that supplies the heart.
CK-12 Foundation
Ck 12: Life Science: Cardiovascular System
[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,...
PBS
Pbs Learning Media: From the Heart
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]
Other
Unitarian Dictionary: Michael Servetus Biography
A detailed biography on the life of Unitarian Michael Servetus. Discusses his childhood, his rejection of the doctrine of original sin, his death at the hands of the Reform Protestants in Geneva and their pastor, John Calvin, and also...
Treehut
Suzy's World: Heart
Find out why your heart beats and perform an experiment to see your pulse moving.
BBC
Bbc: Gcse Bitesize: Cardiovascular System
A great overview of the Cardiovascular System, its structure and functions. See diagrams of the heart, and learn how the blood flows through the heart.
Curated OER
Kids Health: Heart and Circulatory System
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.
Untamed Science
Untamed Science: Biology: Human Biology: Circulatory System
Read and watch how the blood, the heart, and the blood vessels keep the blood flowing through our bodies. [6:00]
University of Utah
University of Utah: Cardiovascular Pathology Index
This site features a detailed index of photographs for cardiovascular pathology. You can see what a normal human heart looks like and what a sick one looks like too. Come and check it out.
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