29 Questions
What is the function of the pharyngeal reflex?
To protect the airway
What is the function of the Eustachian tubes?
To connect the middle ear to the pharynx
What is the name of the cartilage that lies just below the thyroid cartilage?
Cricoid cartilage
What is the name of the space between the vocal cords?
Glottis
What is the name of the tonsils located in the oropharynx?
Palatine tonsils
What is the name of the landmark used for the insertion of an endotracheal tube?
Vallecula epiglottica
What is the primary function of the respiratory system?
To absorb O2 and excrete CO2
What is the main purpose of the upper airways?
To filter, warm, and humidify inhaled air
Where are the olfactory cells that provide the sense of smell located?
In the nasal cavities
What is the function of the sinuses?
To reduce the weight of the head and strengthen the skull
What is the function of the goblet cells and submucosal glands in the nasal cavity and sinuses?
To produce surface fluid for humidification
What is the term for the production of sound waves using the vocal cords?
Phonation
What is the function of cilia in the mucociliary escalator?
To propel mucus toward the pharynx
What is the approximate length of the trachea?
11-13 cm
At what angle does the right bronchus branch?
25 degree angle
What is the function of the trachealis muscle?
To connect the tips of the C-shaped cartilage
What is the name of the point where the trachea divides into two main stem bronchi?
Carina
What is the diameter of the bronchi when they reach the final generation?
Less than 1 mm
What is the primary function of alveoli?
To manufacture and store surfactant
What is the typical volume of anatomic deadspace in an adult?
2 ml/kg of lean body weight
What is the name of the smallest airway that constitutes anatomic deadspace?
Terminal bronchiole
How many segments are typically found in the right lung?
10
What is the diameter of the terminal bronchioles?
0.5 mm
What is the name of the functional units of the lung that include respiratory bronchioles, alveolar ducts, and alveolar clusters?
Acinus
What is the primary purpose of conducting airways?
To convey gas from URT to lung parenchyma
What is the term for the opening of the upper airway?
Patency
What is the most numerous cell type in the mucosa layer of the airway wall?
Columnar epithelia
What is the term for the process of extending the head to open the airway?
Sniffing
What is the purpose of the respiratory airways?
To participate in gas exchange with blood
Learn about the primary function of the respiratory system, external and internal respiration, and the components of the respiratory system. This quiz covers the introduction to the respiratory system as per DES JARDINS Chapter 1.
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