Heart-strongest muscle
-pumps blood -pumps oxygen that is in your blood -helps you live |
Arteries-aorta is the strongest artery
-takes blood away from your heart to the rest of your body -blood goes into the aorta -blood travels through arteries |
Capillaries-red blood cells inside the capillary release their oxygen
-tissue releases its waste products (carbon dioxide) which passes through the wall -helps release heat -blood delivers the heat to the capillaries |
Veins-carry blood to the heart
-bigger veins open up the heart -carry dark red blood that doesn't have much much oxygen |
Blood-red blood cells carry oxygen around your body
-white blood cells kill germs inside your body |