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Biology: Human Body Quiz

The ____ are the two thick-walled lower chambers of the heart. arteries
The smallest veins are called ____. arterioles
Blood flows from the right ventrical to the ____ to the left atrium. atriums
Blood travels from your legs to your heart through ____. chambers
The smallest arteries are called ____. lungs
Blood travels from your heart to your legs through ____. veins
The ____ are the two upper chambers of the heart. ventricles
Your heart has four ____ (two atriums and two ventricles). venules