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214 Cards in this Set

  • Front
  • Back
the external ear canal is protected and lubricated with _____ which is secreted by ____
cerumen; sebaceous glands
within which bone is the middle ear found?
temporal bone
name the 3 ossicles
malleus, incus and stapes
the ossicles transmit sound from the tympanic membrane to _____
oval window
this surrounds the tympanic membrane
dense fibrous ring called the annulus
another name for the center of the TM
umbo
the eustachian tube passes between the nasopharynx and which part of the ear?
middle ear
____ allows the TM to vibrate freely
equalized pressure in the middle ear
the inner ear consists of
vestibule, semicircular canals and cochlea
this structure transmits sound impulses to the 8th CN and contains
cochlea; organ of Corti
____ contain the end organs for vestibular function
semicircular canals
equilibrium receptors are in the ____ and ____
semicircular canals and vestibule
equilibrium receptors respond to ____ and send signals to the ____ to maintain balance
changes in direction of movement; cerebellum
sound waves travel from the oval window to the ____
cochlea
sound waves travel via the endolymph from the cochlea to the _____
round window
this is the location where impulses in the sensory endings of the 8th CN begin and are transmitted to:
membrane of Corti; temporal lobe
anterior openings of the nose
nares
these bones form the nasal bridge
maxillary and frontal bones
floor of the nose is formed by
hard and soft palate
roof of the nose is formed by
frontal and sphenoid bone
a septum divides the internal nose into 2 anterior cavities called
vestibules
posterior openings leading to the nasopharynx
choanae
this house the sensory endings of the olfactory nerve
cribiform plate
the Kiesselbach plexus lies where on the septum?
anterior superior portion
adenoids are where in relation to the nasopharynx?
posterior wall of nasopharynx
the cribiform plate lies where?
roof of the nose
the lateral walls of the nose are formed by ___
turbinates
curved bony structures covered by vascular mucous membrane that runs horizontally and protrudes into nasal cavity
turbinates
the turbinates serve this function
increase the SA of the nose to warm, humidify and filter inspired air
area below each turbinate
meatus
nasolacrimal duct drains into ___
inferior meatus
paranasal sinus drains into ___
medial meatus
posterior ethmoid sinus drains into ___
superior meatus
air-filled paired extensions of the nasal cavities
paranasal sinuses
this sinus lies along the lateral wall of the nasal cavity in the maxillary bone
maxillary sinus
these 2 sinuses are the only ones accessible for PE
maxillary and frontal
these sinuses lie behind the frontal sinuses and near the superior portion of the nasal cavity
ethmoid sinuses
these sinuses are deep in the skull behind the ethmoid sinuses
sphenoid sinuses
the oral cavity is divided into ___ and ____
mouth and vestibule
this is the space between the buccal mucosa and outer surface of teeth and gums
vestibule
the mouth is the anterior opening of the ____
oropharynx
roof of the mouth is formed by
hard palate and soft palate
the uvula hangs from the hard or soft palate?
soft
the floor of the mouth is formed by tissue covering which bone?
mandibular
___ anchors the tongue to the floor of the mouth
frenulum
these 3 glands are located in the tissue surrounding the oral cavity
parotid, submandibular and sublingual
___ are outlets of the parotid glands than open on the ____ opposite the second molar on each upper jaw
Stensen ducts; buccal mucosa
___ are outlets of the submandibular glands and open on each side of the ____
Wharton ducts; frenulum
sublingual ducts open along the ___
sublingual fold
how many permanent teeth are normal?
32
what is a common variant of the normal # of permanent teeth and in what population is this common?
28; Asian (30%) and white/Native Am (10-15%)
the roots of permanent teeth are anchored to ___
alveolar ridges
how many incisors, canines, premolars and molars are there?
4, 2, 4, 6
the oropharynx is seperated from the mouth by
tonsillar pillars
development of the inner ear occurs during which trimester?
first
an infants EAC is shorter or longer than an adults?
shorter and has an upward curve
the frontal and sphenoid sinuses begin to develop at age ___ and finish developing by ___
3 yo; late adolescence
deciduous teeth begin to calcify at what month of fetal life?
3
how many deciduous teeth are there?
20
all deciduous teeth usually appear between what ages?
6-24 mo
permanent teeth start forming at what age?
6 mo
eruption of permanent teeth begins at what age and ends by what age?
6 yo; 14/15 yo
estrogen causes an increased vascularity in the UR tract causes these sx: (5)
nasal stuffiness, decreased smell, epistaxis (bleeding), sense of fullness in the ears and impaired hearing
laryngeal changes occur due to hormones causing these sx: (4)
hoarseness, deepening/cracking of voice, vocal changes and persistent cough
what causes hearing loss in old age and at what age does this begin?
degeneration of hair cells in the organ of Corti or atrophy of stria vascularis; 50 yo
network of capillaries that secrete endolymph and promote sensitization of hair cells in the cochlea
stria vascularis
sensorineural hearing loss begins with what frequency sounds and progresses to ___ frequency:
higher; lower
excess deposition of bone cells along ossicles can cause
hearing loss
what causes conductive hearing loss in old age?
the TM becomes more translucent and sclerotic
deterioration of sense of smell results from loss of ___ and begins around what age?
olfactory sensory nerves; 60 yo
sense of taste deteriorates due to ___ around age ___
decreased # of papillae on the tongue and decreased salivary gland secretion; 50 yo
this reduces the perception of sweet sensations
decreased salivary gland secretion
this lining of the lips and cheeks becomes more prominent with old age
granular lining
hearing loss risk factors for adults (3)
exposure to industrial/recreational noise, Meniere disease, neurodegenerative disease
hearing loss risk factors for kids/infants (8)
prenatal factors (maternal infection, iiradiation, drug abuse, syphilis), low birth weight (< 1500 g), high bilirubin level, infection (bact meningitis, otitis media), cleft palate/craniofacial abnormalities, ototoxic antibiotic use, head trauma, hypoxia
risk factors for oral cancer (8)
> 40 yo, male gender, black ethnicity, excess alcohol, ill-fitting dentures or prior oral lesions, tobacco use, occupation (textile, leather), systemic disease (pernicious/Fe def anemia, HIV, lichen planus, malignancy, HPV)
thickening along upper ridge of helix; expected or not?
Darwin tubercle; expected
preauricular pits are found where and are expected or not?
front of ear where upper auricle originates; expected
preauricular pits often occur in conjunction with ___ and are most common in what race?
lip pits; blacks
bluness of the auricle can indicate
cyanosis
pallor or excessive redness of the auricle can indicate
vasomotor instability
extreme pallor of the auricle can indicate
frostbite
this ear abnormality is a result of blunt trauma and necrosis of the underlying cartilage
cauliflower ear
small, whitish uric acid crystals along the peripheral margins of the auricles
tophi
tophi may indicate
gout
elevations in the skin with a punctum indicating a blocked sebaceous gland
sebaceous cyst
an auricle with a low set or unusual angle may indicate what? (2)
chromosomal aberrations or renal disorders
a purulent foul-smelling discharge is associated with what? (2)
otitis or foreign body
smell of earwax (cerumen) may indicate what in the following? maple syrup, mousy, putrid
maple syrup urine disease, Proteus infection, Pseudomonas infection
pain in the lobule may indicate
inflammation of the EAC
tenderness or swelling of the mastoid area may indicate
mastoiditis
Where do you place the tuning fork to perform the Weber test?
on the vertex
TM signs and associated conditions/causes: bulging with no mobility
pus or fluid in middle ear
TM signs and associated conditions/causes: retracted with no mobility
obstruction of eustacian tube with or without effusion
TM signs and associated conditions/causes: mobility with negative pressure only
obstruction of eustacian tube with or without effusion
TM signs and associated conditions/causes: excess mobility in small areas
healed perforation, atrophic TM
TM signs and associated conditions/causes: amber or yellow color
serous fluid in middle ear
TM signs and associated conditions/causes: blue or deep red color
blood in middle ear
TM signs and associated conditions/causes: chalky white color
infection in middle ear
TM signs and associated conditions/causes: redness
infection in middle ear; prolonged crying
TM signs and associated conditions/causes: dullness
fibrosis
TM signs and associated conditions/causes: white flecks, dense white plaques
healed inflammation
TM signs and associated conditions/causes: air bubbles
serous fluid in middle ear
ratio of normal air to bone conduction
2:1
this type of hearing loss results when sound transmission is impaired through the external or middle ear
conductive hearing loss
this type of hearing loss results from a defect in the inner ear that leads to distortion of sound and misinterpretation of speech
sensorineural hearing loss
expected findings of Weber test
no lateralization, will lateralize to occluded ear
expected findings of Rinne test
AC:BC = 2:1
conductive hearing loss findings of Weber test
lateralization of deaf ear
conductive hearing loss findings of Rinne test
BC hear longer in affected ear
sensorineural hearing loss finding in Weber test
lateralization to better ear
sensorineural hearing loss in Rinne test
AC > BC but less than 2:1
Dx: bilateral watery discharge associated with sneezing and nasal congestion
allergy
Dx: unilateral watery discharge after head trauma
CSF fluid and cribiform plate fracture
Dx: bloody discharge
epistaxis or trauma
Dx: mucoid discharge
rhinitis
Dx: bilateral discharge
URI
Dx: unilateral, purulent thick greenish and malodorous discharge
foreign body
Dx: nasal flaring
respiratory distress
Dx: nare narrowing on inspiration
chronic nasal obstruction and mouth breathing
Dx: transverse crease at the junction between cartilage and bone of nose
chronic nasal itching and allergies
Which 2 turbinates are visible upon inspection?
middle and inferior
Dx: localized redness and swelling in vestibule of nose
furnucle
Dx: turbinate appearing bluish gray or pale pink with a swollen, boggy consistency
allergies
Dx: rounded, elongated mass projecting into the nasal cavity from boggy mucosa
polyp
Dx: asymmetric size of posterior nasal cavities
deviation of septum
Dx: crusting over the anterior portion of the septum
epistaxis
cheilits
dry, cracked lips
cheilosis
deep fissures in the corner of the mouth
Dx: cheilosis
riboflavin def or overclosure of mouth
Dx: pallor of the lips
anemia
Dx: circumoral pallor
scarlet fever
Dx: cherry red color of lips
acidosis and CO poisoning
Dx: round oval or irregular bluish gray macules on lips and buccal mucosa
Peutz-Jeghers syndrome
clenching the teeth tests which CN?
CN 7
Dx: grayish, white benign lesion on buccal mucosa occuring most often in blacks
leukoedema
ectopic sebaceous glands that appear on the buccal mucosa and lips as numberous small yellow-white raised lesions
Fordyce spots
Dx: deeply pigmented buccal mucosa
endocrine pathology
Dx: red spot on buccal mucosa at the opening of the Stensen duct
parotitis/mumps
white round or oval ulcerative lesions with a red halo on the buccal mucosa
aphthous ulcers
thickened white patch lesion that cannot be wiped away
leukoplakia
localized gingival enlargement or ganuloma
epulis
enlargement of the gums occurs in these 4 situations
pregnancy, puberty, phenytoin therapy and leukemia
Dx: blue-black line about 1 mm from the gum margin
chronic lead or bismuth poisioning
Dx: easily bleeding, swollen gums that have enlarged crevices between the teeth and gum margins or pockets containing debris at tooth margins
gingivitis or periodontal disease
extension of the tongue while looking for deviation, tremor and limited movement tests for which CN?
12
Dx: smooth red tongue with a slick appearance
vit B12 def or niacin def
9 oral manifestations of HIV infection
oral hairy leukoplakia, angular cheilitis, candidiasis, herpex simplex, zoster, HPV, aphthous ulcers, periodontal disease, Kaposi sarcoma
white irregular lesions on lateral side of tongue or buccal mucosa; may have prominent folds or hairy projections
oral hairy leukoplasia
creamy white plaques on oral mucosa that bleed when scraped
candidiasis
recurrent vesicular crusting lesion on the vermillion border of the lip
herpes simplex
vesicular and ulcerative oral lesions in distribution of trigeminal nerve; may also be on gingiva
herpes zoster
single or multiple sessile or pedunculated nodules in oral cavity
HPV
recurrent circumscibed ulcers with an erythematous margin
aphthous ulcers
incompletely formed BVs proliferate in the mouth, forming lesions of various hades and sizes as blood extravasates in response to malignant tumor of epith
Kaposi sarcoma
bony protuberance on the lingual surface of the mandible near the canine and premolar teeth
mandibular torus
asking the pt to say "ah" tests which CNs?
9 and 10
failure of soft palate to rise bilaterally with vocalization is a result of paralysis of which CN?
10
with paralysis of CN 10, which way will the uvula deviate?
to the unaffected side
Dx: red bulge adjacent to the tonsil and extending beyond the midline
peritonsillar abscess
Dx: yellowish mucoid film in pharynx
postnasal drip
Dx: grayish adherent membrane
diphtheria
gag reflex tests which CNs?
9 and 10
Nylen Barany test tests for what?
evaluate of the vestibular branch of the auditory nerve
Dx: drooling in an infant over 12 mo
neurologic disorder
macroglossia is associated with what ocngenital anomaly?
hypothyroidism
small whitish yellow masses at the juncture between the hard and soft palate in infants
epstein pearls
bruxism
unconscious teeth grinding
Dx: flattened edges on the teeth
bruxism
Dx: multiple brown areas or caries on upper and lower incisors of infants
baby bottle syndrome
Dx: mottled or pitted teeth in infants
tetracycline tx during tooth development or enamel dysplasia
Dx: chalky white lines or speckles on cutting edges of permanent incisors in infants
excessive fluoride intake
Dx: white specks with a red base on the buccal mucosa opposite the first and second molars in infants
Koplik spots
Koplik spots are associated with
rubeola
presbycusis
sensorineural hearing deterioration with advancing age
2 common causes of conductive hearing loss in older adults
otosclerosis and impacted cerumen
infection of the auditory canal resulting when trauma or a moist environment favors bacterial or fungal growth
otitis externa (swimmer's ear)
Dx: buging of TM, limited or absent mobility of TM, air fluid level behind the TM and otorrhea
middle ear infection
causes of middle ear infection (3)
obstructed or dysfunctional eustachian tube, allergies and enlarged lymphoid tissue in nasopharynx
Dx: itching in ear canal, pain with movement of pinna, watery then purulent discharge, conductive hearing loss, red edematous canal and obscured TM
otitis externa
Dx: abrupt onset, fever, feeling of blockage, deep seated earache, discharge only if TM ruptures, conductive loss as middle ear fills with pus, bulging TM with erythema, limited or absent movement
acute otitis media
Dx: sticking or cracking sound on yawning or swallowing, discomfort, feeling of fullness, no discharge, conductive hearing loss as middle ear fills with fluid, TM retracted or bulging, impaired motility
middle ear effusion
epithelial growth that migrates through a perforation in the TM
cholesteatoma
result of untreated cholesteatoma
erosion of the temporal bone
hereditary condition, irregular ossification within the bony labyrinth or otic capsule resulting in fixation of stapes
otosclerosis
Dx: tinnitus and slowly progressive low to medium pitch conductive hearing loss, sensorineural hearing loss may develop
otosclerosis
disease that affects the vestibular labyrinth leading to profound sensorineural hearing loss
Meniere disease
Dx: abrupt and recurrent attacks of vertigo, tinnitus and progressive hearing loss, fullness in ears, unilateral then bilateral
Meniere disease
labyrinthitis occurs as a complication of what? (4)
acute URI or bacterial infection, otitis media or meningitis
Dx: vertigo, nystagmus which are increased in severity with head movement
labyrinthitis
paranasal sinusitis may be a result of what? (4)
viral URI, dental infection, allergies or structural defect of nose
acute sinusitis is characterized by what?
URI that worsens after 5 days, persists longer than 10 days and has more severe sx than typical URI
Dx: purulent nasal or postnasal drainage, nasal congestion, facial pain or pressure
sinusitis
Dx: in child, rhinorrhea, cough, fever, halitosis, hyponasal speech, pain or HA, periorbital swelling, postnasal drip, absent transillumination
sinusitis
5 strongest predictors of sinusitis
maxillary toothache, purulent nasal secretions, dull or opaque sinus transillumination, poor response to decongestants and colored nasal discharge
Dx: sniffling, nasal congestion, recurrent nosebleeds, sinus problems, scabs on nasal mucosa, decreased perception of taste and smell, nasal septum perforation
cocaine abuse
common cause of tonsillitis
streptococci
Dx: sore throat, referred pain to ears, dysphagia, fever, fetid breath, malaise
tonsilitis
clinical signs most predictive for group A beta-hemolytic streptococcus
tonsililar enlargement and exudates, tender and enlarged cervical nodes, pharyngeal erythema
infection of the tissue between the tonsil and tonsillar pillars that occurs as a complication of tonsilitis
peritonsillar abscess
Dx: dysphagia, drooling, severe sore throat with pain radiating to the ear, muffled voice, malaise and fever
peritonsillar abscess
ulcerative lesion that may be erythematous, white or pigmented, apperaing as piled up edges around a core that often appears on the lateral border or floor of mouth
oral cancer
Dx: sore in mouth that will not heal, white or red patch, bleeding ulceration, lump or thickening
oral cancer
long term problems affecting those with cleft palate/lip
hearing loss, chronic otitis media, speech difficulties, feeding problems and improper tooth development and alignment
in what races are cleft palate/lip most common?
whites and Japanese
causes of retropharyngeal abscess
trauma to posterior pharyngeal wall or dental infection
common causative organisms of retropharyngeal abscess
group A streptococcus and Staphylococcus
Dx: child, acutely ill, febrile, drooling, anorexic and restless, respiratory distress, muffled voice and stridor
retropharyngeal abscess
at what age do the retropharyngeal nodes tend to atrophy?
5 or 6 yo
common auditory disorder in which there is bilateral sensorineural hearing loss associated with aging
presbycusis
cause of presbycusis
degenerative changes in inner ear or auditory nerve
Dx: loss in perception of auditory stimuli, initially high freq and tinnitus
presbycusis
dry mouth caused by ingestion of anticholinergic or antidepressant drugs that interfere with production of saliva or systemic diseases or in heavy smokers
xerostomia
systemic diseases that cause xerostomia
RA, scleroderma, polymyositis and Sjogren syndrome