The heart consists of four chambers. Two of these and two of these
Atria (atrium) & Ventricles
These help fight off infections and disease that are apart of the immune system.
White blood cells
In order to get oxygenated, the blood must travel through this artery to the lungs.
Pulmonary artery
These tubes carry oxygenated blood throughout the body
Arteries
The four of these prevent blood from flowing in the wrong direction and separate the sections of the heart
Valves
These help control bleeding in our body.
Platelets
This part of the heart are the lower chambers with then sends the blood to the aorta or the pulmonary artery.
Ventricles
These tubes carry deoxygenated blood back to the heart.
Veins
This main artery leads away from the heart to transport oxygenated blood to the rest of the body.
The Aorta
These transport carbon dioxide back to the lungs to be exhaled.
Red blood cells
This chamber has thin walls and pumps blood into the ventricles
Atrium
These small blood vessels is where the real work of the cardiovascular system takes place
Capillaries
This artery transports blood form the right ventricle of the heart to the lungs to be oxygenated.
Pulmonary Artery
This substance carries water, enzymes, hormones, etc. throughout the body.
Plasma
This stage causes the atria to contract, pushing blood into the lower chambers of the heart.
Systole
The "lub dub" sound you hear that makes up the heartbeat is actually what?
The valves opening and closing
This main vein leads deoxygenated blood back into the heart, connecting to the right atrium.
Superior Vena Cava
These tiny blood vessels help connect your veins and arteries and facilitate the exchange of certain materials.
Capillaries
The stage where the heart muscle relaxes and the upper chambers of both sides fill with blood.
Diastole
You have about this many liters of blood in your body.
5 liters