Respiratory System Functions Quiz

Respiratory system does not filter blood, but it exchanges gases.

Dyspnea refers to difficulty or discomfort in breathing.

Carbon dioxide levels regulate respiratory rate.

Ventilation refers to the movement of air in and out of the lungs.

Oxygen is primarily exchanged for carbon dioxide during respiration.

Exhalation is the process of expelling air from the lungs.

Alveoli are the site of gas exchange in the lungs.

Alveoli facilitate the exchange of oxygen and carbon dioxide.

Bronchi belong to the lower respiratory tract, not upper.

The diaphragm contracts to expand the thoracic cavity.

Surfactant reduces surface tension, preventing alveolar collapse.

Medulla oblongata regulates breathing rhythm and rate.

Pharynx belongs to the upper respiratory tract.

Atelectasis involves partial or complete alveolar collapse.

Vocal cords vibrate to produce sounds.

This sequence represents the correct path of air passage in the respiratory system.

Chronic bronchitis involves chronic inflammation and mucus production in the airways.

Respiratory mucosa warms and humidifies inhaled air.

Respiratory system regulates blood pH via carbon dioxide elimination.

Epiglottis covers the trachea during swallowing.

Blood glucose level does not directly affect respiratory rate.

Cilia aid in the removal of mucus and debris from airways.

Asthma involves airway inflammation and constriction.

Perfusion delivers oxygenated blood to body tissues.

Residual volume is the air left in lungs after maximal exhalation.