In the diagram it showes you the inside of the heart and it also tells you what in the inside of the heart is.HumanHeartDiagram.jpgAubrey Kellie Ian Danny

In logical order complete all of the research points required for your body system.
Major Functions-organ system that moves nutrients, gas, and waste.
With each heart beat blood is sent throughout our bodies carrying oxygen and nutrients to the cell.
Veins are used to carry blood to the heart.
Arteries carry blood away from the heart.

The Circulatory System is the main transportation and cooling system for the body. The Red Blood Cells act like billions of little UPS trucks carrying all sorts of packages that are needed by all the cells in the body. Instead of UPS, I'll call them RBC's. RBC's carry oxygen and nutrients to the cells. Every cell in the body requires oxygen to remain alive. Besides RBC's, there are also White Blood Cells moving in the circulatory system traffic. White Blood Cells are the paramedics, police and street cleaners of the circulatory system. Anytime we have a cold, a cut, or an infection the WBC's go to work.

The circulatory system is made up of the vessels and the muscles that help and control the flow of the blood around the body. This process is called circulation. The main parts of the system are the heart, arteries, capillaries and veins.
In the picture its a explaining the high pressure and the low pressure of the arteries
On its way back to the heart, the blood travels through a system of veins. As it reaches the lungs, the carbon dioxide (a waste product) is removed from the blood and replace with fresh oxygen that we have inhaled through the lungs.