During an assessment of the ear structures, the nurse would expect to identify which structure as part of the middle ear?
Tympanic Membrane
Ear lobe
Cochlea
Pinna
The Correct Answer is A
Choice a reason:
The tympanic membrane, also known as the eardrum, is a critical component of the middle ear. It is a thin membrane that separates the external ear from the middle ear and vibrates in response to sound waves. These vibrations are then transmitted to the ossicles within the middle ear, which amplify and carry the sound to the inner ear.
Choice b reason:
The ear lobe is part of the external ear, not the middle ear. It is composed of soft skin and fatty tissue and does not play a role in hearing. The ear lobe serves primarily as a site for body decoration such as earrings.
Choice c reason:
The cochlea is a structure located in the inner ear. It is a spiral-shaped organ that contains the organ of Corti, the sensory organ of hearing. The cochlea converts the mechanical vibrations from the middle ear into nerve impulses that are sent to the brain.
Choice d reason:
The pinna, or auricle, is the visible part of the external ear. It is made of cartilage and skin and functions to capture sound waves and direct them into the ear canal towards the tympanic membrane.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice a reason:
Hypothyroidism is a condition where the thyroid gland does not produce enough thyroid hormones. This can lead to a variety of symptoms, including hoarseness, fatigue, and weight gain. The hoarseness can be due to the effect of hormone deficiency on the vocal cords, while fatigue and weight gain are common due to the slowed metabolism associated with hypothyroidism.
Choice b reason:
Gingivitis is inflammation of the gums and does not typically cause hoarseness, fatigue, or weight gain. It is more commonly associated with symptoms like red, swollen gums and bleeding during brushing or flossing.
Choice c reason:
Aphthous ulcers, also known as canker sores, are small, shallow lesions that develop on the soft tissues in the mouth or at the base of the gums. While they can be painful and cause difficulty with eating and speaking, they do not cause systemic symptoms such as hoarseness, fatigue, or weight gain.
Choice d reason:
Dysphagia, or difficulty swallowing, can lead to hoarseness if there is an associated throat disorder. However, it is not typically associated with systemic symptoms like fatigue and weight gain unless it is part of a broader condition that affects the body's metabolism or energy levels.
Correct Answer is C
Explanation
Choice a reason:
Getting a longer cord for the telephone may reduce the risk of tripping over a short cord but could potentially introduce new tripping hazards if not managed properly. It's important to keep cords secured and out of walkways to prevent falls.
Choice b reason:
Placing a throw rug over electrical cords is not advisable as it can create a tripping hazard. Rugs should be secured with non-slip backing and kept away from high-traffic areas to prevent falls.
Choice c reason:
Using handrails in the bathroom is a recommended safety measure to prevent falls. Bathrooms can be slippery, and handrails provide support and stability for residents when moving around in this area.
Choice d reason:
Using chairs without armrests is not a recommended practice for fall prevention. Chairs with armrests can aid residents in safely sitting down and standing up, providing support and reducing the risk of falls.
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