Circulatory System

Exercise causes our heart to pump more blood because our cells need more...

• VERTICLES

• CARBON DIOXIDE

• ATRIA

• OXIGEN

The ......... is an important organ, the engine of the circulatory sistem, and a muscle that constantly works.

• LUNGS

• VEINS

• CAPILARIES

• HEART

Carbon dioxide rich blood moves through the ............... side of your heart.

• left
• top
• right
• bottom

...............carry blood towards the heart.

• arteries
• capillaries
• lymph vessels
• veins

................... are the upper cavities of the heart.

• atria

• arteries
• capillaries
• ventricles

The ..................... are the organs we use to breathe.

• heart
• lungs

• liver
• stomach

...................... carry blood away from the heart.

• veins
• arteries
• capillaries
• lymph vessels

....................... are the small tubes where gas is exchanged.

• arteries

• ventricles

• capillaries
• heart

Cells use oxygen for energy, and the waste product is ......................

• water
• carbon dioxide
• nitrogen
• glucose

Tags

NGSS.MS-LS1-7

Oxygen rich blood moves through the .................... side of the heart.

• right
• middle
• left
• top