Distinguishes between the arteries and the veins as well as the systemic and pulmonary circulations.
Discusses blood vessel structure and function.
This animation shows the route blood takes through the body and lungs.
Discusses circulation in the human body and the function of blood vessels.
Come up with questions about a topic and learn new vocabulary words to determine answers using an Ask, Answer, Learn table.
People have thought leeches had medical uses for centuries, modern medicine has decided they were right!