Respiratory System Flashcards
The nose is divided into the ____, which is formed by hyaline cartilage and bones of the skull, and the ____, which is entirely within the skull.
External nose;
Nasal cavity
The nasal cavity is lined by two types of epithelium; ____ and ____.
Olfactory mucosa;
Respiratory mucosa
The ____ divides the nasal cavity into right and left sides.
Septum
The nostrils are also known as the ____ (singular, ____).
Nares;
Naris
Air entering the nose encounters the ____, which create turbulence and increase the chances that airborne contaminants will contact the nasal mucosa rather than passing into the lungs.
Nasal conchae
The nasal cavity is surrounded by ____ within the frontal, maxillary, sphenoid, and ethmoid bones that serve to lighten the skull, warm and moisten air, and produce mucus.
Paranasal sinuses.
Hair, mucus, and cilia which line the nasal cavity prevent ____.
Dust and debris from entering the lungs.
After leaving the internal nasal cavity, air enters the ____, which can be divided into three regions, the ____, ____ and ____.
Pharynx;
Nasopharynx;
Oropharynx;
Laryngopharynx.
The ____ is the region of the pharynx which serves only as an air passageway.
Nasopharynx
The ____ contains the lymphatic pharyngeal tonsil (adenoid), which traps and destroys airborne pathogens, and the pharyngeal opening of the auditory tube.
Nasopharynx.
The ____ is an air, food, and drink passageway that extends inferiorly from the level of the soft palate to the epiglottis.
Oropharynx.
The ____ is an air, food, and drink passageway that lies directly behind the epiglottis, extends to the larynx, and is continuous inferiorly with the esophagus.
Laryngopharynx.
Food and air are sorted into the stomach of lungs, respectively, in the ____ region of the pharynx.
Laryngooharynx.
The casual phrase voice box refers to the ____.
Larynx.
The superior boundary of the larynx is the ____ bone, above which is the laryngopharynx. Inferior to the larynx is the ____.
Hyoid bone;
Trachea.
