NUR 3121 Week 2: Ears Exam Questions
and Answers
cerumen - Ans:-ear wax
a yellow waxy material that lubricates and protects the ear
where does the lymphatic drainage of the external ear flow? - Ans:-parotid, mastoid, and superficial
cervical nodes
what color is a normal finding of the TM - An...
what is the normal pathway of hearing - Ans:✔✔-air conduction
it is the most efficient
what is the alternate pathway of hearing - Ans:✔✔-bone conduction
bone conduction - Ans:✔✔-bones of the skull vibrate and are transmitted directly to inner ear and to
cranial nerve VIII
conductive hearing loss - Ans:✔✔-mechanical dysfunction of external or middle ear
sensorineural hearing loss - Ans:✔✔-signifies pathology of inner ear, cranial nerve VIII, or auditory areas
of the cerebral cortex
mixed hearing loss - Ans:✔✔-combination of conductive and sensorineural types in the same ear
what part of the ear is responsible for equilibrium - Ans:✔✔-the labyrinth of the inner ear which is made
up of 3 semicircular canals
if the labyrinth ever becomes inflamed, what can occur - Ans:✔✔-it feeds wrong information to the brain
and can create a staggering gait and vertigo
how does an infant's eustachian tube compare to an adult's - Ans:✔✔-infant's eustachian tubes are
relatively shorter, wider, and more horizontal than adults
effect of maternal rubella on infant - Ans:✔✔-can damage the organ of corti and impair hearing
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