Seidel chapter 13 Flashcards
In adults, the length of the external auditory canal is ___ cm.
a. 0.5
b. 1
c. 2.5
d. 4
e. 5
C. 2.5 cm in adults
The middle ear contains the
a. cerumen and sebaceous glands.
b. umbo and malleus.
c. vestibule and cochlea.
d. pars tensa and semicircular canals.
e. helix and antihelix
B umbo and malleus
The middle ear contains the ossicles, which are three small bones: 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. Cerumen 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.
The middle ear is normally filled with
a. mucous collection
b. blodd
c. serousfluid
d. cerebrospinal fluid
e. air
E
The hair cells of Corti and membrane of Corti
a. maintain equilibrium
b. protect the ear from foreign particles
c. stimulate the eighth cranial nerve
d. transmit vibrations to the ossicles
e. produce a waxy lubricant
C
Vibrations from the tympanic membrane cause the delicate hair cells of the organ of Corti to strike against the membrane of Corti, stimulating impulses in the sensory endings of the auditory division of the eighth cranial nerve
The organ of Corti is a coiled structure located inside the
a. cochlea in the inner ear
b. pars flaccida in the tympanic membrane
c. eustachian tube
d. lateral aspect of the pinna
e. targus
A
Which ear structure is responsible for equalizing atmospheric pressure when swallowing, sneezing, and yawning?
a. Eustachian tube
b. Inner ear
c. Semicircular canals
d. Triangular fossa
e. Oval window
A
The structures that lie along the lateral wall of the nasal cavity near the facial cheek are the _____ sinuses.
a. ethmoid
b. frontal
c. maxillary
d. cribiform
e. sphenoid
C
Ethmoid - lie behind the frontal sinuses
Paranasal - extensions of the nasal cavities within the skull
A 5 y/o child presents with nasal congestion and a headache. To assess for sinus tenderness, you should palpate over the
a. sphenoid and frontal
b. maxillary and frontal
c. maxillary only
d. sphenoid only
e. ethmoid and frontal
C
The frontal sinuses don’t develop until 7-8
A 30 y/o woman present with rapid swelling beneath her jaw that suddenly appears while she is eating. The swelling is mildly painful but is not hot or red. You suspect Wharton salivary duct stones and proceed to palpate
a. bilarterally along the buccal mucosa
b. under the tongue, along each side of the frenulum
c. dorsum of the tongue
d. besdie the gingivae near each molar
e. along the roof of the mouth
B
The vast majority of stone occur in this duct from the submaxillary gland. Can be palpated along each side of the frenulum under the tongue
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 forward
d. short and curved downward
e. long, wide. and straight
B
The upward curve in infants is what makes pulling the pinna down causing the straightening of the canal.
When examining an infant’s middle 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 back up
A You should use your other hand to pull the auricle down and back in an effort to straighten the upward curvature of the canal.
The eruption of permanent teeth most commonly begins with the
a. upper central incisors
b. upper canines
c. lower central incisors
d. lower canines
e. upper lateral incisors
C The central incisor on the lower jaw usually erupts between 6 and 7 years of age as the first permanent teeth, the lower canines appear at 9 to 10 years of age, the upper central incisors at 7 to 8 years of age, and the upper canines at 11 to 12 years of age. The upper lateral incisors appear at 8 to 10 years of age.
The pregnant woman can expect to experience
a. more nasal stuffiness
b. a sensitive sense of smell
c. drooling
d. enhanced hearing
e. decreased vascularity of the gums
A Physiologic changes of pregnancy include nasal stuffiness, a decreased sense of smell, impaired hearing, epistaxis, and a sense of fullness in the ears. Increased vascularity and proliferation of connective tissue of the gums also may occur.
During what developmental stage are hoarseness, voice cracking, and a persistent cough a common finding?
a. Adolescence
b. Infancy
c. Menopause
d. Pregnancy
e. Childhood
D Laryngeal changes in pregnancy include hoarseness, deepening or cracking of the voice, vocal changes, and persistent cough.
Which of the following is associated with age-related hearing loss?
a. Degeneration of the hair cells of the organ of Corti
b. Excess resorption of bone cells of the ossicle chain
c. Increased pliability of the tympanic membrane
d. More serous cerumen
e. Proliferation of the stria vascularis
A Nearly one third of adults older than 65 years have hearing loss. Age-related hearing loss is associated with degeneration of hair cells in the organ of Corti, loss of cortical and organ of Corti auditory neurons, degeneration of the cochlear conductive membrane, and decreased vascularity in the cochlea.
You are performing hearing screening tests. Difficulty in hearing the highest frequencies would be expected in a ___-year-old patient.
a. 7
b. 12
c. 20
d. 40
e. 65
E Nearly one third of adults 65 years of age and older have sensorineural hearing loss.
Mr. S presents with the complaint of hearing loss. You specifically inquire about current medications. Which medications, if listed, are likely to contribute to his hearing loss?
a. Chlorothiazide
b. Acetaminophen
c. Salicylates
d. Cephalosporins
e. Penicillins
C Ototoxic medications include aminoglycoside, salicylates, furosemide, streptomycin, quinine, ethacrynic acid, and cisplatin. Chlorothiazide diuretics, acetaminophen, penicillins, and cephalosporins are considered non-ototoxic.
Mr. W, age 25 years, has recovered recently from an upper and lower respiratory infection. He describes long-standing nasal dripping. He is seeking treatment for a mild hearing loss that has not gone away. Information concerning his chronic postnasal drip should be documented in which section of his history?
a. Age-specific data
b. Past medical data
c. Family history
d. Social history
e. Personal history
B This information is part of the past medical history.
A newborn whose serum bilirubin is greater than 20 mg/100 mL risks later
a. hearing loss.
b. lichen planus.
c. tooth decay.
d. meningitis.
e. sinusitis.
A Risk factors for hearing loss in infants include infection, irradiation, drug abuse, and syphilis in the mother, as well as birth weight less than 1500 g, excessively high bilirubin level, infections (e.g., bacterial meningitis recurrent otitis media), cleft palate, craniofacial abnormalities, ototoxic antibiotic use, head trauma, and hypoxic episodes in infancy.