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
While a patient’s medication history can impact wound healing, in this case, there is no specific information provided about the patient’s medications that would suggest a delay in wound healing.
Choice B rationale
Although the patient’s cholesterol level is elevated, hyperlipidemia is not typically associated with delayed wound healing.
Choice C rationale
Prealbumin is a marker of nutritional status. A low prealbumin level, like in this patient, could indicate malnutrition, which can delay wound healing. Adequate nutrition is essential for wound healing as it provides the necessary building blocks for tissue repair.
Choice D rationale
The patient’s fasting glucose level is within the normal range, so it is unlikely to impact wound healing. While poorly controlled diabetes can delay wound healing, this patient’s diabetes appears to be well-controlled.
Correct Answer is AANDD
Explanation
Choice A rationale
An ileostomy involves creating a stoma, or opening, in the abdominal wall. The location of the stoma is typically in the right lower abdomen.
Choice B rationale
The end of the stoma should not be painful after the procedure. If the patient experiences pain, it could indicate a complication and should be reported to the healthcare provider.
Choice C rationale
The patient should not expect the stoma to be a purple color. A healthy stoma should be red or pink. A purple stoma could indicate a lack of blood flow, which is a serious issue that needs immediate medical attention.
Choice D rationale
After an ileostomy, the patient will have liquid or semi-liquid stool pass through the stoma. This is because the large intestine, which normally absorbs water and forms solid stool, is bypassed or removed in the procedure.
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