Quiz on Human Respiratory System

What is one of the three life functions of the human body?

• Nutrition

• Construction

• Communication

• Transportation

What does the respiratory system help us do?

• Circulate blood

• Excrete waste

• Digest food

• Breathe in oxygen

What is the name of the tubes that take air into the lungs?

• Alveoli

• Trachea

• Bronchi

• Diaphragm

What are the small air sacs in the lungs called?

• Nostrils

• Bronchi

• Lungs

• Alveoli

What gas do we breathe out?

• Carbon Dioxide

• Hydrogen

• Oxygen

• Nitrogen

Where does the air travel after the trachea?

• Into the heart

• Into the bronchi

• Into the stomach

• Into the brain

What is the function of the alveoli?

• To filter air

• To pump blood

• To transfer oxygen to the blood

• To digest food

Which organ helps us breathe in air?

• Lungs

• Liver

• Kidneys

• Heart

What is the process called when oxygen and carbon dioxide are exchanged?

• Circulation

• Respiration

• Gas exchange

• Digestion

Which part of the body do we use to breathe in air?

• Feet

• Nose and mouth

• Ears

• Hands