The primary organs of the respiratory system are the______.

• Lungs

• Heart

• Trachea

• Bronchioles

Which is NOT a function of the respiratory system?

• It warms air entering the body.

• It exchanges oxygen and carbon dioxide.

• It pumps blood to the organs.

• It creates sound through the voice box.

The respiratory system begins in the _______.

• Diaphragm

• Lungs

• Nose and mouth

• Pharynx

This passageway is part of both the respiratory and digestive system.

• Larynx

• Pharynx

• Nasal cavity

• Trachea

The ____________ carries air to the left and right bronchus.

• Esophagus

• Bronchioles

• Alveoli

• Trachea

The place in the lungs where the gases exchange is the ________.

• Alveoli

• Diaphragm

• Bronchus

• Nose and mouth

The small tree-like branches coming off the right and left bronchus are the ________.

• Trachea

• Branches

• Bronchioles

• Pharynx

The muscular organ that holds the vocal chords is the ________.

• Epiglottis

• Pharynx

• Larynx

• Trachea

The small flap of cartilage that closes when food passes is called the ________.

• Epiglottis

• Valve

• Trachea

• Bronchioles

Which is NOT a disease of the respiratory system?

• Diabetes

• COPD

• Asthma

• Bronchitis