Circulatory and Respiratory systems

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

Tags

NGSS.MS-LS1-3

Arteries carry oxygen rich blood away from the heart.

• True

• False

Veins carry oxygen poor blood back to the heart.

• False

• True

The job of the heart is to . . .

• pump blood around the body.

• send food to the small intestines.

• break down food.

• give energy to the body.

The heart is about the size and shape of your . . .

• head

• fist

• hand

• foot

______________ are the smallest blood vessels.

• Arteries
• Veins
• Capillaries

The circulatory system works with the ___________ system to provide our body with oxygen.

• respiratory
• digestive
• muscular
• skeletal

Which chambers of the heart are the thickest and strongest?

• Atria
• Ventricles
• Valves
• Aorta

True or False: There are four chambers in the heart.

• True
• False

The aorta is the largest artery in the body. The blood leaving the aorta is full of?

• Oxygen 
• Carbon Dioxide 
• White blood Cells 
• Potassium 

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5