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141 Cards in this Set

  • Front
  • Back
Length of external auditory canal
2.5 cm in adults
Secreted by sebaceous glands in distal 1/3 of canal
Cerumen
Most of tympanic membrane is __ while superior portion is __
Tense (pars tensa); flaccid (pars flaccid)
Bone that can be seen through tympanic membrane
Malleus
Organ of corti (part of cochlea) transmits impulses to:
8th cranial n
Path of hearing
Sound waves enter external auditory canal → tympanic membrane → vibrates attached malleus → vibrates incus and stapes → oval window of inner ear (where stapes attached) → endolymph fluid of chochlea → round window → hair cells of Organ of Corti → 8th cranial n → temporal lobe
2 bones that form nasal bridge
Frontal and maxillary bones
2 bones that form roof of nose
Frontal and sphenoid bones
Convergence of small fragile arteries and veins superficially on anterior superior portion of the septum
Kiesselbach plexus
Lie on the posterior wall of the nasopharynx
Adenoids
Drainages of nasolacrimal duct, paranasal sinuses and posterior ethmoid sinus
Inferior, medial and superior meatus (respectively)
Development of sinuses by age
Maxillary & ethmoid (birth), sphenoid (tiny cavity at birth but develops at puberty), then frontal sinus (develops 7-8 yrs old)
Tongue is anchored to what 2 structures
Base to back of oral cavity; floor of mouth by frenulum
Outlets of the parotid gland; open on buccal mucosa opposite the 2nd molar on each side of upper jaw
Stensen ducts of parotid gland
Open on each side of the frenulum under the tongue
Wharton ducts of submandibular glands
Usual number of teeth in adults
32 (exception, Asians have no wisdom teeth so 28 teeth, followed by whites and native Americans; rare in blacks)
Inferior to nasopharnx, separated fr/mouth by anterior and posterior tonsillar pillars
Oropharynx
Fetal development of inner ear occurs:
1st trimester
How does infant ears differ fr/adults
Infant external auditory canal is shorter and has upward curve; allows easier reflux of nasopharyngeal secretions
Age when deciduous teeth calcify
Fetal 3rd month
When do 20 deciduous teeth appear
6-24 mo
Eruption time frame of permanent teeth
6 yrs – 14-15 yrs (white children 3rd molars ~ 18 yrs old)
Elevated levels of estrogen in pregnancy causes:
Increased vacularity of UR tract; stuffy nose, ↓ smell, epistaxis (bleeding fr/nose); hoarseness, vocal changes or persistent cough
Hearing begins to deteriorate at what age? Why?
After age 50; degeneration of hair cells of organ of Corti
Sensorineural hearing loss occurs first with:
High frequency then progresses to lower frequency
Atrophy of stria vascularis that secrete endolymph can cause
↓ sensitation leading to hearing loss
Onset of instant hearing loss may indicate:
Vascular disruption
Aminoglycosides, salicylates, furosemide, streptomycin, quinine, ethacrynic acid and cisplatin
Ototoxic meds
Genetic disease assctd w/hearing loss
Meniere disease
Low birth weight (< 1500 g), ↑ bilirubin level, maternal infx, syphilis during prenatal period, cleft palate, craniofacial abnormalities, head trauma, hypoxic episode, infections
Risk factors for infant/child hearing loss
Risk factors for oral cancer
> 40 yrs, male, black, alcohol abuse, ill-fitting dentures/prior oral lesions, tobacco use, occupation (textile or leather manufacturing), systemic disease (anemia, HIV, lichen planus, prior malignancy)
Dry mouth
Xerostomia
Anticholinergics, diuretics, antiHT, antihistamines, antispasmodics, antidepressants, tranquilizers
Meds that ↓ salivation
Thickening along the upper ridge of the helix; expected variant
Darwin tubercle
Blueness of auricles indicate __, while pallor or excessive redness indicates __
Vasomotor instability; frostbite (extreme pallor)
Can be result of blunt trauma or necrosis of underlying cartilage of ear
Cauliflower ear
Small, whitish uric acid crystals along peripheral margins of the auricles can indicate:
Gout
Elevations in the skin w/a punctum indicating a blockage
Sebaceous cyst
An auricle with a low set or unusual angle may indicate:
Chromosomal or renal disorders
Depth to insert the speculum in the ear
1-1.5 cm (1/2 inch)
Which landmarks should be visible on the tympanic membrane
Umbo, handle of malleus, and light reflex
A bulging tympanic membrane is more __ while a retracted membrane is more ___
Conical (loss of bony landmarks); concave (accentuated landmarks, distorted light reflex)
Use to assess the mobility of the tympanic membrane
Pneumatic otoscopy
Maple syrup odor from earwax can indicate
Maple syrup urine disease
Mousey odor from earwax can indicate
Proteus infx
Putrid odor from earwax can indicate
Pseudomonas infx
Distance Dr stands for whisper test
1-2 ft (atleast 50% correct response is expected)
Tests for lateralization of sound
Weber test (tuning fork on midline of skull)
In the Rinne test, air conduction should be __ than bone conduction
2x
When sound transmission is impaired through external or middle ear
Conductive hearing loss
Defect in middle ear that leads to distortion of sound and misinterpretation of speech
Sensorineural hearing loss
If bone conduction is heard longer than air conduction in affected ear, then Rinne is ___ and pt has __ hearing loss
Negative; conductive
If air conduction is longer than bone, but less than 2x as long, then pt has __ hearing loss
Sensorineural
In the Weber test, __ hearing loss results in lateralization of deaf ear, and __ hearing loss results in lateralization to the better ear
Conductive; sensorineural
In Weber test, sound should be best heard in the __ ear
Occluded??? Pg 330
Bilateral water discharge from nose, with sneezing and nasal congestion indicates
Allergy
Unilateral watery discharge after head trauma can indicate
Fracture of cribiform plate → cerebrospinal fluid
Profuse bleeding fr/the nose
Epistaxis
Mucoid discharge is seen in ___, while bilateral purulent discharge can be seen in ___
Rhinitis; upper respiratory infx
Unilateral, purulent, thick, greenish and very malodorous discharge may indicate
Foreign body in nose
Which turbinates are visible in nasal exam
Middle and inferior
Turbinates that appear bluish gray or pale pink w/swollen, boggy consistency can indicate:
Allergies
Rounded, elongated mass projecting in to the nasal cavity fr/boggy mucosa may be a:
Polyp
Deep fissures at the corners of the mouth, aka ___, may indicate:
Cheilosis; riboflavin deficiency or overclosure of mouth
Pale lips can indicate __, while circumoral pallor can indicate __
Anemia; scarlet fever
Give indications for bluish purplish lips
Respiratory/cardiovascular problem
Give indications for cherry red lips
Acidosis and carbon monoxide poisoning
Give indications for irregular bluish gray macules on lips and buccal mucosa
Peutz-Jeghers syndrome
Size of teeth by race, from largest to smallest
Orientals/Native Americans > blacks > whites
Grayish-white benign lesion of the buccal mucosa that occurs in 70-90% of blacks and 40% of whites
Leukoedema
Type of malocclusion when molars have customary relationship, but line of occlusion incorrect because of rotated teeth or other causes
Class I
Type of malocclusion when lower molars are distally positioned in relation to upper molars; line of occlusion MAY be correct
Class II
Type of malocclusion when lower molars are medially positioned in relation to upper molars, line of occlusion MAY be correct
Class III
Ectopic sebaceous glands on buccal mucosa and lips that are numerous and small, yellow-white, raised; an expected variant
Fordyce spots
Deeply pigmented buccal mucosa can indicate
Endocrine pathology
Red spot on the buccal mucosa at the opening of the Stensen duct is asstd w/:
Parotitis (mumps)
Appear on the buccal mucosa as white, round, or oval uncreative lesions with a red halo
Apthous ulcers
Blue-black line about 1 mm from the gum margin may indicate
Chronic lead or bismuth poisoning
A protruded tongue deviates to the __ side of lesion and tests for which cranial nerve
Same side; hypoglossal nerve (CN 12)
A smooth red tongue w/ a slick appearance can indicate:
Niacin or Vit B12 deficiency
A hairy tongue w/yellow-brown to black elongated papillae on the dorsum:
Can follow antibiotic therapy
High risk site for oral cancer
Vermilion border of the lips
Manifestations of oral hairy leukoplakia, angular cheilitis candidiasis, herpes simplex, herpes zoster, human papillomavirus, apthous ulcers, periodontal dis, and Kaposi sarcoma are indicated in what disease?
HIV infx
An ulcer, nodule, or thickened white patch on the lateral or ventral surface of the tongue can suggest
Malignancy
A bony protuberance on the lingual surface of the mandible that is more common in Orientals and Native Americans
Mandibular torus
Bony protuberance at the midline of the hard palate
Torus palatines
During aaah, failure of soft palate to rise bilaterally may result from paralysis of:
Vagus nerve
Observing uvula during aaah, it deviates to the __ side, and test for which nerves?
Unaffected side; glossopharyngeal (CN 9) and vagus (CN 10)
How can u help a person w/ gag reflex using tongue blade?
Wet w/warm water
A red bulge adjacent to the tonsil and extending beyond the midline can indicate
Peritonsillar abscess
A grayish adherent membrane on the pharynx is asstd w/:
Diphtheria
A yellowish mucoid film in the pharynx is asstd w/:
Postnasal drip
The gag reflex tests (should be a bilateral response):
Glossopharyngeal and vagus nerves (CN 9 and 10)
Pt lies supine with head hyperextended 45 degrees over exam table while dr observes for nystagmus, unexpected finding with duraction and vertical/horizontal movement of eyes noted
Nylen-Barany test
When using transillumination of the sinuses in a dark room, what are unexpected findings?
Asymmetry of transillumination; opaque or dull response
To determine the height of auricles, you make an imaginary line between what 2 landmarks
Outer canthus of eye and prominent portion of occiput (auricle should be no more than 10 d from vertical)
Premature infant auricles:
Have slower recoil
Auricles poorly shaped or below the imaginary line are asstd w/:
Renal or congenital disorders
A small preauricular skin tag or pit just anterior to the tragus of an infant can indicate:
A remnant of the first branchial cleft
Expected age an infant responds to his/her name
6-10 mo
Age that an infant turns head toward source of sound
4-6 mo
Age that infant has a startle reflex due to loud noise
Birth – 3 mo
Age that infant recognizes and localizes source of sound; imitates simple words and sounds
10-12 mo
With breathing difficulty of an infant when expiring through noncompressed naris, what should be done?
Pass small catheter through each naris to the choana to determine obstruction (from choanal atresia or septal deviation from delivery trauma)
Secretions that accumulate in the newborns mouth requiring frequent sunctioning may indicate:
Esophageal atresia
Adherent white patches of the tongue or buccal mucosa (in an infant or adult) can indicate:
Candidiasis (thrush)
Drooling over 12 months of age can indicate:
Neurological disorder
Macroglossia of the infant is asstd w/:
Congenital anomalies or hypothyroidism
A narrow, flat palate roof or high, arched palate (asstd w ___) can cause what problems
Congenital anomalies; feeding or speech problems
Small, whitish masses between the hard and soft palate of the newborn and are common; disappear within a few weeks after birth
Epstein pearls
Multiple brown areas or caries on the upper and lower incisors of children may indicate
Baby bottle syndrome
Children with black or gray color on teeth may indicate
Oral iron therapy
Mottled or pitted teeh on children usually result of:
Tetracycline tx during tooth development or enamel dysplasia
Chalky white lines or speckles on the cutting edges of permanent incisors of children may result from:
Excessive fluoride intake
White specks called ___with a red base on the buccal mucosa opposite the first and second molars that occur with fever, coryza (acute rhinitis) and cough can indicate:
Koplik spots; rubeola
Describe grading of enlarged tonsils
1+ visible, 2+ halfway between tonsillar pillars and uvula, 3+ nearly touching uvula, 4+ touching each other
If tonsils appear pushed backward or forward, possibly displacing the uvula, consider:
Peritonsillar abscess
Hearing deterioration w/advanced age (presbycusis) marked by greater difficulty in understanding speech rather than all sounds; bilateral
Sensorineural hearing deterioration
Three common findings in the mouths of older adults
Fissured tongue, varicose veins on tongue, attrition of teeth
Infection of auditory canal resulting from trauma or moist environment that favors bacterial or fungal growth
Otitis external aka swimmer’s ear
Collection of serous, mucoid, or purulent fluid (effusion) of the middle ear that results in conductive hearing loss
Middle ear effusion
Type of ear infx with itching in the ear canal that is intense when the pinna is moved, or with chewing
Otitis externa
Ear infx with fever, feeling of blockage, tugging at earlobe, anorexia, irritability, dizziness, vomiting and diarrhea; deep-seated earache
Acute otitis media
Ear infx with sticking or cracking sound on yawning or swallowing, no signs of acute infx and uncommon to have pain
Middle ear effusion
Ear infx that results in at first water, then purulent and thick discharge with pus, musty and foul-smelling
Otitis externa
Acute otitis media occurrence by race, from most to least
Native Americans, Alaskan, Canadian > whites > blacks
Ear infx that causes bulging of tympanic membrane
Acute otitis media
Most common ear infx of childhood with lower incidence in adults
Acute otitis media
White, shiny, greasy flecks of debris/epithelial growth seen on the posterior superior middle ear through the tympanic membrane or perforation; can cause progressive hearing loss, tinnitus, mild vertigo; can lead to intracranial complications by eroding the temporal bone
Cholesteatoma
Hereditary condition more common in women; ossification occurs within bony labyrinth or otic capsule fixating the stapes; progressive hearing loss w/onset late teens-30 yrs; sensorineural hearing loss
Otosclerosis
Disease that affects the vestibular labyrinth, leading to profound sensorineural hearing loss, mild vertigo, tinnitus, unilateral at first then involves other ear
Meniere Disease
Inflammation of the labyrinthine canal of the inner ear due to acute upper respiratory infx; severe vertigo, nystagmus and increase severity w/head movement; total sensorineural hearing loss on affected side
Labyrithitis
Maxillary toothache, purulent nasal secretions, dull/opaque transillumination, poor response to decongestants, and colored nasal discharge are strong predictors of: (4 or more)
Sinusitis
Children that suffer from upper respiratory symptoms, nasal discharge, low-grade fever, daytime cough, malodorous breath, cervical adenopathy and morning eye swelling with no headache may indicate:
Sinusitis
Scabs on nasal mucosa, ↓ perception of taste and smell, perforation of the nasal septum can indicate:
Chronic cocaine insufflation (snorting—word of the day )
Tonsillitis studded w/yellow follicles most commonly caused by:
Streptococcus infection
Tonsils that appear red, swollen, with tonsillar crypts filled with purulent exudates; which lymphs would be enlarged?
Tonsillitis; anterior cervical
Moderate/severe tonsillar swelling, moderate/sever cervical lymphadenopathy, scarlatiniform rash with no coryza (acute rhinitis) highly indicative of:
Group A beta-hemolytic streptococcus
Infx of tissue between tonsil and pharynx, complication of tonsillitis; can cause dysphagia, drooling, sore throat w/pain radiating to the ear, muffled voice and fever; tonsil may appear pushed forward/backward
Peritonsillar abscess
Congenital malformation of the face as a fissure of the upper lip or palate
Cleft lip and/or palate
Drymouth caused by ingestion of anticholinergic or antidepressants drugs that interfere w/production of saliva; rheumatoid arthritis, scleroderma, polymyositis, and Sjogren syndrome; heavy smokers or those who have had radiation to the head and neck
Xerostomia