Grade 6 Body Systems: Respiratory and Circulatory system

Where is the place that the exchange of oxygen and carbon dioxide happen?

• Bronchi

• Windpipe

• Air sacs

• diaphragm

The only externally visible part of the respiratory system is

• Nose

• Lungs

• Diaphragm

• Bronchi

The muscle that contracts and relaxes tomoves air in and out of the lungs

• Nose

• Lungs

• Diaphragm

• Bronchi

The purpose of mucus inside our nose is

• To prevents the air from entering our lungs

• To prevents the bacteria, germs and dust from entering our lungs

• To make the air cooler

• To trap the carbon dioxide from the outside

The main organ of respiratory system is

• Nose

• Heart

• Mouth

• Lungs

The main function of respiratory system is

• To provide oxygen and remove carbon dioxide from our body

• To provide carbon dioxide and remove oxygen from our body

• To bring oxygen to every part of our body

• To bring carbon dioxide to every part of our body

What do we take when we inhale?

• Hydrogen

• Carbon dioxide

• Calcium

• Oxygen

What makes up our circulatory system?

• Heart, lungs and blood vessels

• Nose, heart, diaphragm and liver

• Heart, blood vessels and blood

• Lungs, heart and blood vessels

Blood that travels in the veins are rich in:

• Oxygen

• Carbon dioxide

• Hydrogen

• Carbon monoxide

The tools shown in the picture is...

• Bronchodilator

• Whistle

• Harmonica

• Flute