3A Video Assignment Questions

Gas transport

includes the binding of respiratory gases to the hemoglobin

Alveolar gas exchange

loading of oxygen and unloading of carbon dioxide

Pulmonary ventilation

driven by the pressure gradients between the atmosphere and alveoli

Systemic gas exchange

unloading of oxygen and loading of carbon dioxide

Air moving into the lungs moves ____ a pressure gradient.

along

The chemoreceptors that detect odors are located in the _______ of the nasal cavity

olfactory region

The most inferior region of the pharynx is the

laryngopharynx

The ____ is commonly referred to as the windpipe.

trachea

Vocal folds are located in the ______

larynx

The epiglottis moves, covering the ______ during swallowing in order to prevent blocking the airways.

larynx

The length and thickness of the vocal cords has the largest impact on the ____ of the voice.

pitch

The _____ bronchi extend from the carina region of the trachea and enter the hilum region of the lungs.

main

The _____ mark the beginning of the respiratory zone.

respiratory bronchioles

Bronchodilation occurs as the smooth muscle of the bronchioles _____.

relaxes