Which part of the larynx produces sounds when air passes by?
vocal folds (true vocal cords)
Each main (primary) bronchus enters the lung at the apex.
False
How do goblet cells contribute to protection of the respiratory system?
produce mucus that traps debris.
The superior portion of each lung is the
apex
Consequence of damaged respiratory cilia:
inability to sweep mucus from the lungs to the throat
Venous blood in PULMONARY circulation is poor in oxygen and high in carbon dioxide.
False
Tissue that forms the rings that reinforce the trachea
hyaline cartilage
The Heimlich maneuver uses air in a person’s own lungs to eject an obstruction.
True
Which passageways branch off of the trachea?
bronchi
When breathing in, air enters the larynx through an opening called
glottis
Venous blood in SYSTEMIC circulation is poor in oxygen and high in carbon dioxide.
True
Which one of the following is NOT true of the lungs?
Both lungs have two lobes.
The function of the rings of hyaline cartilage in the trachea is to keep the airway open.
True
Where does gas exchange occur?
alveoli