Which of the following correctly describes the process of hearing?
Vibration of the eardrum is directly transmitted to the eighth cranial nerve, bypassing the inner ear structures.
Sound waves enter the ear canal and are converted to electrical impulses.
Vibration of the eardrum transmits through the bony ossicles to the perilymph in the inner ear, stimulating the eighth cranial nerve.
Sound is transmitted directly from the eardrum to the brain.
The Correct Answer is C
Choice A rationale
Vibration of the eardrum is not directly transmitted to the eighth cranial nerve, bypassing the inner ear structures. The vibrations from the eardrum are first transmitted through the ossicles (tiny bones in the middle ear) to the cochlea in the inner ear.
Choice B rationale
Sound waves enter the ear canal, but they are not directly converted to electrical impulses. The sound waves cause the eardrum to vibrate, and these vibrations are transmitted through the ossicles to the cochlea, where they are converted into electrical signals that are sent to the brain via the eighth cranial nerve.
Choice C rationale
Vibration of the eardrum transmits through the bony ossicles to the perilymph in the inner ear, stimulating the eighth cranial nerve. This is the correct description of the process of hearing.
Choice D rationale
Sound is not transmitted directly from the eardrum to the brain. The sound-induced vibrations of the eardrum are transmitted through the ossicles to the cochlea, where they are converted into electrical signals that are sent to the brain via the eighth cranial nerve.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Purulent drainage is thick and opaque. It can have a yellow, tan, green, or brown color and is a sign of infection.
Choice B rationale
Sanguineous drainage is bright red and indicates active bleeding3.
Choice C rationale
Serosanguineous drainage is typically pink-red and thin. It is made up of blood and serous fluid and is typically seen in a normal, non-infected wound3.
Choice D rationale
Serous drainage is clear and thin, like the fluid from a blister3.
Correct Answer is ["B","C","D","E"]
Explanation
Choice A rationale
The presence of a grab bar in the bathroom is actually a safety measure that can help prevent falls. It provides support for the patient when they are getting up or moving around, reducing the risk of a fall.
Choice B rationale
An electrical cord lying across a walkway is a tripping hazard and would increase the patient’s risk of falling. It is important to keep walkways clear of clutter and potential obstacles to prevent falls.
Choice C rationale
Macular degeneration can affect the patient’s vision, making it difficult for them to see obstacles or changes in the walking surface. This can increase their risk of falling.
Choice D rationale
Throw rugs in the kitchen can easily slip or bunch up, creating a tripping hazard. They should be secured with non-slip backing or removed to reduce the risk of falls.
Choice E rationale
While a cane can provide support and improve balance, it also indicates that the patient has mobility issues, which increases their risk of falling. It is important that the patient uses the cane correctly and that it is the right height for them.
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