Choose the best answer.

1			What is the function of the air passages beneath the conchae that create turbulence within the nasal cavity?
			A)	They amplify the voice.
			B)	The lower passages between the inferior and middle nasal conchae provide surface area for olfactory mucosa.
			C)	They cool the air as it enters.
			D)	They ensure that air is warmed and humidified.
2			The smallest passageways in the lung to have ciliated epithelia are ______________
			A)	terminal bronchioles.
			B)	respiratory bronchioles.
			C)	tertiary bronchi.
			D)	alveolar ducts.
3			What structure is most important in keeping food out of the trachea?
			A)	Glottis
			B)	Epiglottis
			C)	Soft palate
			D)	Vocal folds
4			Which of the following is NOT a function of the respiratory system?
			A)	It allows exchange of oxygen and carbon dioxide between blood and air.
			B)	It contributes to maintenance of pH balance.
			C)	It helps to expel abdominal contents during defecation and childbirth.
			D)	It helps to transport gases to tissues.
			E)	It permits laughing.
5			Where does the lower respiratory tract begin?
			A)	The trachea
			B)	The choanae
			C)	The primary bronchi
			D)	The bronchioles
			E)	The glottis
6			The airway from the nose to the larynx is called the _________________.
			A)	respiratory division
			B)	upper respiratory tract
			C)	lower respiratory tract
			D)	posterior lung system
7			The major structure of the nose is due to the lateral and ____________ cartilages.
			A)	nasal
			B)	septal
			C)	alar
			D)	vestibular
8			The guard hairs of the nose are called __________________________.
			A)	vestibule hairs
			B)	superior choanae
			C)	vibrissae
			D)	cilia
9			Which is NOT a function of the respiratory system?
			A)	It provides oxygen and carbon dioxide exchange between the blood and air.
			B)	It serves for speech.
			C)	It provides the sense of smell.
			D)	It serves to remove urea from the blood.
10			A molecule of oxygen must pass each of these structures in order to get to the alveoi of the lungs. Which sequence is correct?
			A)	lungs – nose – throat – trachea
			B)	throat – nose – lungs – trachea
			C)	nose – throat – trachea – lungs
			D)	trachea – throat – lungs – nose
11			The nose is divided into right and left sides by the _________________.
			A)	meatus
			B)	septum
			C)	vibrissae
			D)	turbinates
12			The largest of the external cartilages is called the ___________________.
			A)	septal
			B)	alar
			C)	lateral
			D)	nasal
13			Odors are detected by cells in the __________________.
			A)	olfactory mucosa
			B)	erectile tissue
			C)	sphenoethmoidal recess
			D)	inferior meatus
14			The projections from the inside of the nose are called _____________ .
			A)	Vibrissae
			B)	Nares
			C)	Meatus
			D)	Conchae
15			What is the name of the area that lies posterior to the choana and superior to the soft palate?
			A)	Laryngopharynx
			B)	Nasopharynx
			C)	Oropharynx
			D)	Palatopharynx
16			The largest of the laryngeal cartilages is the ______________ cartilage.
			A)	cricoid
			B)	carniculate
			C)	thyroid
			D)	arytenoids
17			What is the name of the laryngeal cartilage that completely encircles the larynx?
			A)	Cricoid
			B)	Corniculate
			C)	Thyroid
			D)	Arytenoids
18			The attachment of the vocal folds posteriorly is to these cartilages. What are the names of these cartilages?
			A)	Cuneiform
			B)	Corniculate
			C)	Arytenoid
			D)	Epiglottic
19			The superior pair of laryngeal folds is called the _________________ folds.
			A)	vestibular
			B)	vocal
			C)	thyrohyoid
			D)	epiglottic
20			The opening between the vocal cords (folds) is called the ________________.
			A)	epiglottis
			B)	glottis
			C)	cornu
			D)	arytenoidius
21			What is the name of the structure that connects the cricoid cartilage to the primary bronchi?
			A)	Glottis
			B)	Carina
			C)	Esophagus
			D)	Trachea
22			The point of division of the trachea into the right and left primary bronchi is called the _______________.
			A)	glottis
			B)	carina
			C)	esophagus
			D)	trachea
23			The walls of the primary, secondary and tertiary bronchi all contain _____________________.
			A)	trachealis muscle only
			B)	a hilum
			C)	cartilage
			D)	bony spicules
24			The epithelium of the bronchioles contains _____________________.
			A)	cilia
			B)	flagellum
			C)	very few goblet cells
			D)	type two alveolar cells
25			The functional units for the exchange of oxygen and carbon dioxide are the ___________________________.
			A)	primary bronchi
			B)	tertiary bronchi
			C)	terminal bronchioles
			D)	alveolar sacs
26			The major muscle for inspiration is the __________________.
			A)	diaphragm
			B)	external intercostals
			C)	internal intercostals
			D)	scalenes