You will get to check out how large multicellular creatures depend on circulation to deliver water and nutrients to the cells of their bodies. Observe the way that the heart and blood vessels of humans accomplish this task, and find out how plants do it too.
After completing this tutorial, you will be able to complete the following:
What do blood vessels do?
~ Blood vessels take blood from the heart and transport it to every part of the body. The blood carries oxygen to all the cells of the body and brings deoxygenated blood back to the lungs to be cleaned and oxygenated once again.
What purpose do the arteries serve, and which are the most important?
~ The arteries are the blood vessels that carry blood away from the heart. The most important arteries are the pulmonary artery, which carries deoxygenated blood in the right ventricle to the lungs, and the aorta, which carries oxygenated blood from the left ventricle to the rest of the body.
What do the pulmonary vein and the superior and inferior vena cava do?
~ The pulmonary vein carries freshly oxygenated blood from the lungs to the heart. The superior and inferior vena cava both carry deoxygenated blood back to the heart.
Where are the capillaries found, and what role do they play in circulation?
~ The capillaries are found between the arteries and veins. They allow molecules like glucose and oxygen to move out of the blood directly to the cells of the body. They also allow molecules such as carbon dioxide and other waste products to enter the blood so they can be removed from the body.
|Approximate Time||2 Minutes|
|Pre-requisite Concepts||Students should be able to define the following terms: arteries, blood vessels, capillaries, lung, veins, and vessels.|
|Type of Tutorial||Animation|
|Key Vocabulary||arteries, blood vessels, capillaries, lung, veins, vessels|