| The smallest arteries are called ____. |
arteries |
| Blood flows from the right ventrical to the ____ to the left atrium. |
arterioles |
| Your ____ filter blood plasma by separating it from waste. |
atriums |
| Blood travels from your heart to your legs through ____. |
kidneys |
| The superior (upper) and inferior (lower) ____ are large veins. |
lungs |
| The ____ are the two upper chambers of the heart. |
vena cavas |
| The smallest veins are called ____. |
ventricles |
| The ____ are the two thick-walled lower chambers of the heart. |
venules |
