In this video I discuss the circulatory system or cardiovascular system, the functions of the cardiovascular system and the path of blood flow through the heart and components of the cardiovascular system.
Transcript (partial with notes)
The circulatory system is responsible for transporting nutrients, such as, hormones, water, oxygen and other nutrients to and from virtually all cells throughout the body.
It also carries away carbon dioxide and other waste materials produced by cells.
The cardiovascular system is made up of the heart, vessels, which include arteries, veins and capillaries.
Let’s look at the path of nutrients though the body…
1st, Oxygen is absorbed in the lungs, where it enters the bloodstream and goes to the heart, which pumps it into arteries. Arteries take the oxygenated material to organs and tissues, where they merge into capillaries.
Many capillaries enter tissue to form a capillary bed. The oxygenated material drops off its nutrients, and collects waste materials such as carbon dioxide.
This deoxygenated waste continues through the capillary which merge into veins. The veins then take the waste to the heart, which pumps it back to the lungs where it can get oxygenated again.