The hair cells of Corti and membrane of Corti:
a. produce a waxy lubricant.
b. protect the ear from foreign particles.
c. stimulate the eighth cranial nerve.
d. transmit vibrations to the ossicles.
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.
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A community health nurse is cautious when recommending the use of OTC cold remedies to patients. The use of pseudoephedrine would most likely be contraindicated in which of the following patients?
A) A woman who is breast-feeding B) A man with a history of angina and hypertension C) A man who has diagnoses of chronic obstructive pulmonary disease and diabetes D) A woman who has myasthenia gravis
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A precancerous lesion that may be found on oral examination is:
A) Herpes simplex. B) Cheilitis. C) Leukoplakia. D) Cheilosis.
The nurse is planning care for three newly-delivered adolescents and their babies. What should the nurse keep in mind when planning their care?
A. The baby's father should be encouraged to participate in teaching. B. A class for all the adolescents would decrease teaching effectiveness. C. The schools that the adolescents attend will provide teaching on bathing. D. Adolescents understand the danger signals in newborns.