Page 414F: The Circulatory System
The Heart and the Circulatory System
Visit this site to learn all about the human heart and circulatory system. The site includes information on blood vessels and circulatory problems.
The Heart: An Online Exploration
Go to this site by the Franklin Institute Online to learn more about the human heart and the circulatory system. Click on any highlighted word to learn more about that subject.
The Circulatory System
At this site you can learn more about the heart, blood vessels, and the cardiac conduction system that controls the beating of the heart. Click on any highlighted term to learn more about that term.
The Human Circulatory System: How It Works
Go to this site for information on blood pressure, control of capillary beds, regulation of blood pressure, and other circulatory system topics.
Spleen and Lymphatic System
At this site you can find out how lymphatic system works and how it is related to the circulatory system.
Page 435: Blood Types
ABO Blood Types
Visit this site to learn all about human blood types. The site explains the inheritance of blood types through one of three alleles (A, B, and O), one of which is inherited from each parent. The possible genotypes and phenotypes of blood types are shown in a chart here.
Blood Types Tutorial
Go to this site to learn more about blood types and human inheritance. Go to the highlighted terms at the left of the screen to learn more about human blood types.
What’s Your Type?
At this site by the Franklin Institute you can find out more about blood types, including a description of universal donors and universal acceptors.
What’s Your (Blood)Type?
Go to this site by the American Red Cross to find answers to questions you might have about blood types and donating blood.