CH. 13 Seidel's Guide to Physical
Examination
1. The middle ear contains the: ANS: B
The middle ear contains the ossi-
a. cerumen and sebaceous glands. cles, which are three small bones:
b. umbo and malleus. with rapid swelling beneath
c. vestibule and cochlea. her
d. pars tensa and
semicircular canals.
e. helix and antihelix.
2. The hair cells of Corti and mem-
brane of Corti:
a. maintain equilibrium.
b. protect the ear from foreign
par- ticles.
c. stimulate the eighth
cranial nerve.
d. transmit vibrations to the ossi-
cles
e. produce a waxy lubricant. U
3. Which ear structure is
responsible for equalizing
atmospheric pres- sure when
swallowing, sneezing, and
yawning?
a. Eustachian tube
b. Inner ear
c. Semicircular canals
d. Triangular fossa
e. Oval window
4. A 30-year-old woman presents
1/
, CH. 13 Seidel's Guide to Physical
Examination
the malleus (the umbo is part of
the malleus), the incus, and the
stapes. The tympanic membrane
separates the external ear from
the middle ear and is composed of
the pars tensa. Ceru- men and
sebaceous glands lie outside the
middle ear; the semicircular
canals, vestibule, and cochlea lie in
the inner ear. The helix and
antihelix are parts of the auricle
ANS: C
Vibrations from the tympanic mem-
brane cause the delicate hair cells
of the organ of Corti to strike
against the membrane of Corti,
stimulating impuls- es in the
sensory endings of the audi- tory
division of the eighth cranial nerve.
ANS: A
The eustachian tube is a
cartilaginous and bony
passageway between the
nasopharynx and the middle ear
that opens briefly to equalize the
middle ear pressure with that of
the atmospheric pressure when
swallowing, yawning, or sneezing.
ANS: B
The vast majority of these stones
oc-
2/
, CH. 13 Seidel's Guide to Physical
Examination
jaw that suddenly appears while 7. The pregnant patient can expect
she is eating. The swelling is to experience:
mild- ly painful but is not hot or
red.
You suspectWharton salivary
duct stones and proceed to
palpate:
a. bilaterally along the buccal
mu- cosa.
b. under the tongue, along
each side of the frenulum.
c. dorsum of the tongue.
d. beside the gingivae near
each molar.
e. along the roof of the mouth.
5. An infant's auditory canal,
when compared with an adult's,
is:
a. short, narrow, and straight.
b. short and curved upward.
c. long, narrow, and curved
for- ward.
d. short and curved downward.
e. long, wide, and straight.
6. When examining an infant's mid-
dle ear, the practitioner should
use one hand to stabilize the
otoscope against the head while
using the other hand to:
a. pull the auricle down and back.
b. hold the speculum in the canal.
c. distract the infant.
d. stabilize the chest.
e. pull the auricle up.
3/
