What is Darwin Tubercle?
a small painless nodule at the helix.
where is the cone of light for rigth and left ear?
5’o clock position in the right drum and 7 o’clock in the left drum
What are the structures and functions of the external ear ?
Auricle or Pinna consists movable cartilage and skin, characteristic shape serves to funnel sound waves into it’s opening which is the external auditory canal.
External auditory canal a cul-de-sac 2.5 to 3cm long in adults that terminates at eardrum or tympanic membrane.
Cartilage -outer one third of canal, inner two thirds consist of bone covered by thin sensitive skin.
what separates the external ear and middle ear?
Tympanic membrane or eardrum
where is the glands that secrete cerumen?
in the canal is lined with glands that secrete cerumen.
what is cerumen?
a yellow waxy material that lubricates and protects the ear.
What is the structure of the middle ear?
tiny air filled cavity inside temporal bone. it contains tiny ear bones, or auditory ossicles: the malleus, incus, and stapes. Several openings are present. to the outer ear and inner ear eustachian tube ; opening that connects middle ear with nasopharynx and allows passage of air
what are the three functions of the middle ear?
- conducts sound vibrations from outer ear to central hearing apparatus in inner ear
- protects inner ear by reducing amplitude of loud sounds
3.Eustachian tube allow equalization of air pressure on each side of TM so that it does not rupture.
What are the structures of the inner ear?
contains the bony labyrinth, which holds sensory organs for equilibrium and hearing.
what is the cochlea (snail shell) and where is it?
in the inner ear and it contains the central hearing apparatus
what is sensorineural hearing loss?
loss signifies pathology of the inner ear, cranial ner VIII.
what is the Otoscopic examination procedure
-choose the largest speculum that will fit comfortably in ear canal.
-tilt the person’s head slightly away from you to bring obliquely sloping eardrum into better view.
-pull pinna up and back on an adult or older children to straighten S shape of canal.
-hold pinna gently but firmly do not release traction on ear until you have finished examination and removed otoscope.
- insert speculum slowly and carefully along axis of canal
-avoid touching inner bony section of canal wall because it’s sensitive to pain
- once in place you may need to rotate otoscope slightly to visualize all the TM, do this gently.
-Last perform otoscopic examination before you test hearing.
what are abnormal findings of the external ear?
Frost bite
Brachial Remnant and ear deformity
Otitis externa (swimmer’s ear)
Cellulitis
Abnormal findings: lumps/Lesions
Sabaceous Cyst
Tophi
Chondrodermatitis Nodularis Helicus
Keloid
Battle Sign
Carcinoma
Abnormal findings: Ear Canal
Excessive Cerumen
Otitis Externa
Osteoma
Foreign Body
Exostosis
Furuncle
Polyp
what test for hearing acuity ?
screening whisper word test
Stand behind the person
repeat after me saying strawberry, dumper, corn
should be able repeat everything
normal finsings for weber and reiner
sound equeal on both ears. air conidition is greater thean bone condition
older adult
pendulous ear lobs with linear wrinkling
eardrum whiter and dull
what is subjective data for ear?
earache
infections
discharge
hearing loss
environmental noise
tinnitus
vertigo
patient centered care
the abnormal finding of the ear frostbite? describe it
red blue discoloration,
what is otitis externa?
inflammation of the outer ear and ear canal.
what is otitis media?
inflammation of the middle ear and tympanic membrane.
abnormal finding: what is common cause of conductive hearing loss?
impacted cerumen
what is the otoscopic examination?
tilt the person’s head slightly away from you toward the opposite shoulder. this for a better view.
pull the pinna up and back on an adult, and older child. this will help straighten the S shape.
hold the pinna gently bur firmly and DO NOT release until you do with the examination and the otoscope is removed.
hold the otoscope upside down and have the dorsa (back) of your hands touching the person’s cheek. this will protect if the patient moves their head.
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Conversation quiz38
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Health Assessment Test Study Guide1
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EYES38
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Ear35
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NOSE MOUTH THOART36
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Ch. 18 Breast and Regional Lymphatics14
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Peripheral Vascular4
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Thorax and lungs71
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Heart and Neck Vessels93
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Peripheral System98
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Abnormal Breats16
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Medical Term65
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Abdomen CH.2243
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Musculoskeletal System7
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CH. 1/2 Evidence based assessment/cultural assessment23
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Ch.3 and 4 Internview and history20
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CH. 14 head and neck lymph nodes10
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Ch. Head, face, neck and regional lymphatics2
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Ch. 13 Skin, hair, nails8
