Respiratory Quiz

alveoli, blood in capillaries, body cells

Structures that respiratory gases pass through as oxygen is inhaled and exhaled

External respiration

oxygen molecules diffuse between alveoli and blood in capillaries

Internal respiration

movement of oxygen/carbon dioxide between blood and body cells

Function of respiratory system

help meet metabolic needs of the body by taking in oxygen and removing carbon dioxide

Pulmonary ventilation

movement of air between external environment and alveoli (air sacs in lungs)

Upper respiratory tract

head, pharynx, larynx

Lower respiratory tract

trachea, bronchi, bronchioles, lungs, alveoli

Conduction zone

conducts warm air between external environment and alveoli; moistens, warms, and filters air; nose, mouth, pharynx, bronchi, bronchioles

Respiratory zone

area of actual gas exchange; alveoli, capillary network

cilia

like the outside of mucous membranes to push mucous toward pharynx for swallowing

Nose