Respiratory System Review

What gas do we breathe in?

• Oxygen (O2)

• Carbon Dioxide (CO2)

Tags

NGSS.MS-LS1-6

What gas do we breathe out?

• Oxygen (O2)

• Carbon Dioxide (CO2)

What is the main organ of the respiratory system?

• Heart

• Lungs

• Stomach

• Brain

What is another word for breathing in?

• Inhale

• Exhale

• Eat

• Sleep

What is another word for breathing out?

• Inhale

• Exhale

• Eat

• Sleep

What is the name of the muscle that sits under your lungs and helps you to inhale and exhale?

• Heart

• Calf

• Bicep

• Diaphragm

What is the name of the two large air passages that lead from the trachea to the lungs?

• Alveoli

• Bronchioles

• Bronchi

• Capillaries

What is the tube that carries air from your throat into your lungs called? Hint: also called a windpipe

• Bronchi

• Bronchioles

• Trachea

• Alveoli

What are the small branches into which the bronchi divides inside the lungs?

• Trachea

• Bronchioles

• Bronchi

• Alveoli

What are the tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place?

• Alveoli

• Trachea

• Bronchi

• Bronchioles