Respiratory System Review

Front

What is the main function of the respiratory system?

Back

The main function of the respiratory system is to facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.

Front

What structure connects the throat to the lungs?

Back

The trachea.

Front

What is the role of the diaphragm in respiration?

Back

The diaphragm contracts and relaxes to help draw air into the lungs and push it out.

Front

What are alveoli and why are they important?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs; they allow oxygen to enter the blood and carbon dioxide to be expelled.

Front

What is the pleural cavity?

Back

The pleural cavity is the space between the pleura (the membranes surrounding the lungs) that contains pleural fluid.

Front

What condition is characterized by the presence of air in the pleural cavity?

Back

Pneumothorax.

Front

What is the primary muscle involved in breathing?

Back

The diaphragm.

Front

What is the difference between the right and left lungs?

Back

The right lung has three lobes, while the left lung has two lobes to accommodate the heart.

Front

What is the function of capillaries in the respiratory system?

Back

Capillaries facilitate the exchange of gases (oxygen and carbon dioxide) between the blood and alveoli.

Front

What is the pathway of air from the nose to the alveoli?

Back

Nose -> Pharynx -> Larynx -> Trachea -> Bronchi -> Bronchioles -> Alveoli.