Respiratory System

Which of the following muscles is the principal muscle of respiration?

• The internal intercostal muscles

• The external intercostal muscles

• Diaphragm

• Lungs

Which of the following is a part of the Lung?

• Trachea

• Bronchioles

• Nose

• Alveoli

With which of the following system does the Respiratory System work directly as a business partner?

• Muscular System

• Circulatory System

• Skeletal System

• Nervous System

Which of the following gases is being exhaled out of the Lungs?

• Oxygen

• Carbon Monoxide

• Carbon Dioxide

• Hydrogen

Which of the following gases is being inhaled into of the Lungs?

• Oxygen

• Carbon Monoxide

• Carbon Dioxide

• Hydrogen

The nose has one main job in the respiratory system, which of the following best describes that job?

• Warm the air.

• Extract pollen and dust.

• Filter the air.

• Moisturize the air.

Where do the gases exchange in the lungs?

• Alveoli Sac

• Diffusion

• Gas exchange

• Filtration

What ensures that air passes into the trachea by covering the opening to the esophagus?

• Mucus

• Pharynx

• Larynx

• Epiglottis

Which of the following is not part of The Airway?

• Trachea

• Larynx

• Pharynx

• Esophagus

In what part of the Respiratory System does the exchange of gases (oxygen and carbon dioxide) happen?

• Lungs

• Alveoli

• Bronchioles

• Epiglottis