Unit Test: Respiratory System

Front

What is the external opening of the nose called?

Back

Nostrils

Front

What part of the respiratory system constricts during an asthma attack?

Back

Bronchioles

Front

What is the process called when carbon dioxide exits the lungs?

Back

Expiration

Front

What connects the alveoli to the bronchi?

Back

Bronchioles

Front

Which nerve sends impulses for diaphragm contraction?

Back

Phrenic nerve

Front

What is the primary function of the respiratory system?

Back

To facilitate gas exchange (oxygen in, carbon dioxide out).

Front

What is the role of the alveoli in the respiratory system?

Back

To provide a large surface area for gas exchange.

Front

What is the difference between inspiration and expiration?

Back

Inspiration is the intake of air into the lungs, while expiration is the release of air from the lungs.

Front

What is the function of the trachea?

Back

To transport air to and from the lungs.

Front

What is the role of the diaphragm in breathing?

Back

To contract and expand the thoracic cavity, aiding in inhalation and exhalation.