Circulatory System 3-5

What 2 organs are most involved in the circulatory system?

• Heart and Stomach

• Stomach and Lungs

• Heart and Lungs

• Stomach and Brain

Cells/Muscles need __________ for energy.

• Carbon Dioxide

• Oxygen

• Food

• Rest

The __________ pumps _________ into the lungs to get oxygen to carry to the cells in use.

• Heart , Blood

• Brain , Gas

• Heart , Water

• Stomach , Liquid

Cells/Muscles produce a waste called ___________ that is carried to the lungs through the blood and exhaled out the mouth.

• Oxygen

• Gas

• Carbon Dioxide

• Sweat

The heart is the size of a _____________.

• Melon

• Foot

• Penny

• Fist

When being active the heart beats ___________ and the lungs breathe ____________.

• Faster , Slower

• Slower , Slower

• Faster , Heavier

• Slower , Heavier

The __________ is a muscle that gets stronger through activity.

• Arm

• Heart

• Stomach

• Eye

The circulatory system is also known as the ______________ system.

• Skeletal

• Digestive

• Nervous

• Cardio Respiratory