NURSING EXAM QUESTIONS
MEDICAL SURGICAL NURSING
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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outer ear
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middle ear
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inner ear
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eustachian tube
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Detailed explanation-1: -The auricle (pinna) is the visible portion of the outer ear. It collects sound waves and channels them into the ear canal (external auditory meatus), where the sound is amplified. The sound waves then travel toward a flexible, oval membrane at the end of the ear canal called the eardrum, or tympanic membrane.
Detailed explanation-2: -The three bones in the middle ear, the hammer, anvil, and stirrup, amplify the vibrations produced in the eardrums. It transmits the amplified pressure variations received from the sound wave to the cochlea.
Detailed explanation-3: -Tinnitus is usually caused by an underlying condition, such as age-related hearing loss, an ear injury or a problem with the circulatory system. For many people, tinnitus improves with treatment of the underlying cause or with other treatments that reduce or mask the noise, making tinnitus less noticeable.
Detailed explanation-4: -Transmission of sound by air conduction.
Detailed explanation-5: -The eardrum in ear senses the vibrations of sound, it sends the signals to the brain. This process is called hearing. Q. Statement 1: Sound vibrations make the ear drum vibrate, the ear drum sends a vibration to the inner ear, from there the signal goes to the brain.