CHAPTER 19 - OTOHIN. SURGERY EXAM QUESTIONS WITH CORRECT ANSWERS LATEST
UPDATE 2026/2027
The external ear, which includes the auricle (or pinna) and external auditory canal, is composed
of cartilage covered with skin. The primary function of the auricle is to:
a. gather and direct sound waves toward the inner ear.
b. concentrate and conduct incoming sound waves into the external auditory canal.
c. collect and amplify incoming sound waves by facilitating tympanic membrane
vibration.
d. facilitate air conduction of sound waves. - Answers b. concentrate and conduct incoming
sound waves into the external auditory canal.
Both ears provide stereophonic hearing that gives us very specific hearing capabilities. Binaural
hearing makes it possible for:
a. determination of the source location of sounds.
b. enhanced voice recognition.
c. amplification and resolution of sound properties.
d. recognition of more than one sound at a time. - Answers a. determination of the source
location of sounds.
The external ear canal lining is protected and lubricated with cerumen (earwax), which traps
foreign material and:
a. liquefies foreign matter in the ear canal.
b. lubricates the external ear.
c. maintains the high acidic pH in the ear canal.
d. reduces bacterial levels in the outer ear. - Answers d. reduces bacterial levels in the outer ear.
A chain of three small articulated bones extends across the middle ear cavity and conducts
vibrations from the tympanic membrane across the middle ear into the oval window and the
fluid-filled inner ear. What are the names of those three small articulating bones?
a. Ossicles, incus, and crura
b. Stapes, capitulum, and stirrup
c. Malleus, incus, and stapes
, d. Anvil, head, and hammer - Answers c. Malleus, incus, and stapes
The nasal sinuses serve as air spaces and communicate with the nasal cavity through the
__________. Anteriorly, on each side of the skull, the frontal sinus, the anterior ethmoidal sinus,
and the maxillary sinus (antrum of Highmore) drain into the middle meatus; the posterior
ethmoid and the sphenoid sinuses drain into the ______________ recess.
a. septum; maxillary
b. middle concha; ethmoidal
c. crista galli; anteriomaxillary
d. meatus; sphenoethmoidal - Answers d. meatus; sphenoethmoidal
The nasal septum is lined with blood vessels and mucus-secreting cells. The proper name of
this lining is the:
a. Mucoperichondrium
b. Septochondrium
c. Nasoseptal mucosa
d. Cartilaginous vascular bed - Answers a. Mucoperichondrium
The nasal cavity is associated with the ear by way of the ____________, and communicates with
the conjunctiva through the __________________. Select the options that are appropriate to
complete the sentence.
a. torus tubarius; canaliculi
b. eustachian tube; nasolacrimal duct
c. nasopharynx; medial caruncle
d. middle ear; lacrimal sac - Answers b. eustachian tube; nasolacrimal duct
The nasal turbinates increase the turbulence of the airflow through the nose to humidify the air.
The turbinates also serve another function to the accessory sinuses by:
a. filtering inspired air and preventing sinusitis.
b. warming and humidifying inspired air.
c. giving resonance to the voice.
d. trapping particle matter before it reaches the nasopharynx. - Answers b. warming and
humidifying inspired air.
UPDATE 2026/2027
The external ear, which includes the auricle (or pinna) and external auditory canal, is composed
of cartilage covered with skin. The primary function of the auricle is to:
a. gather and direct sound waves toward the inner ear.
b. concentrate and conduct incoming sound waves into the external auditory canal.
c. collect and amplify incoming sound waves by facilitating tympanic membrane
vibration.
d. facilitate air conduction of sound waves. - Answers b. concentrate and conduct incoming
sound waves into the external auditory canal.
Both ears provide stereophonic hearing that gives us very specific hearing capabilities. Binaural
hearing makes it possible for:
a. determination of the source location of sounds.
b. enhanced voice recognition.
c. amplification and resolution of sound properties.
d. recognition of more than one sound at a time. - Answers a. determination of the source
location of sounds.
The external ear canal lining is protected and lubricated with cerumen (earwax), which traps
foreign material and:
a. liquefies foreign matter in the ear canal.
b. lubricates the external ear.
c. maintains the high acidic pH in the ear canal.
d. reduces bacterial levels in the outer ear. - Answers d. reduces bacterial levels in the outer ear.
A chain of three small articulated bones extends across the middle ear cavity and conducts
vibrations from the tympanic membrane across the middle ear into the oval window and the
fluid-filled inner ear. What are the names of those three small articulating bones?
a. Ossicles, incus, and crura
b. Stapes, capitulum, and stirrup
c. Malleus, incus, and stapes
, d. Anvil, head, and hammer - Answers c. Malleus, incus, and stapes
The nasal sinuses serve as air spaces and communicate with the nasal cavity through the
__________. Anteriorly, on each side of the skull, the frontal sinus, the anterior ethmoidal sinus,
and the maxillary sinus (antrum of Highmore) drain into the middle meatus; the posterior
ethmoid and the sphenoid sinuses drain into the ______________ recess.
a. septum; maxillary
b. middle concha; ethmoidal
c. crista galli; anteriomaxillary
d. meatus; sphenoethmoidal - Answers d. meatus; sphenoethmoidal
The nasal septum is lined with blood vessels and mucus-secreting cells. The proper name of
this lining is the:
a. Mucoperichondrium
b. Septochondrium
c. Nasoseptal mucosa
d. Cartilaginous vascular bed - Answers a. Mucoperichondrium
The nasal cavity is associated with the ear by way of the ____________, and communicates with
the conjunctiva through the __________________. Select the options that are appropriate to
complete the sentence.
a. torus tubarius; canaliculi
b. eustachian tube; nasolacrimal duct
c. nasopharynx; medial caruncle
d. middle ear; lacrimal sac - Answers b. eustachian tube; nasolacrimal duct
The nasal turbinates increase the turbulence of the airflow through the nose to humidify the air.
The turbinates also serve another function to the accessory sinuses by:
a. filtering inspired air and preventing sinusitis.
b. warming and humidifying inspired air.
c. giving resonance to the voice.
d. trapping particle matter before it reaches the nasopharynx. - Answers b. warming and
humidifying inspired air.
