Question 1

Which of the following statements about the anatomy and physiology of the inner ear is true?

Accepted Answer

The inner ear consists of the bony labyrinth, which is a complex system of canals and chambers filled with fluid called endolymph. The pinna and auditory canal are part of the outer ear, while the middle ear contains the three small bones called ossicles. Therefore, option D is the only true statement about the anatomy and physiology of the inner ear.

Question 2

Which of the following conditions of the external ear should be reported to a health care provider for treatment rather than relying on self-treatment measures?

Accepted Answer

C

Question 3

What structure of the ear joins the nasopharynx and the tympanic cavity and allows for the equalization of the air pressure in the inner ear with the atmospheric pressure?

Accepted Answer

The structure that joins the nasopharynx and the tympanic cavity and allows for the equalization of the air pressure in the inner ear with the atmospheric pressure is the eustachian tube.

Question 4

The nurse suspects otitis media in a client with which of the following symptoms?

Accepted Answer

Pain and fever are common symptoms of otitis media, along with other signs such as ear fullness or pressure, reduced hearing, and fluid discharge from the ear. Itching and buzzing in the ears are not typical symptoms of otitis media, and redness of the auditory canal may indicate other conditions such as otitis externa (swimmer's ear).

Question 5

Which of the following structures serve to amplify sound waves and transmit them to the inner ear?

Accepted Answer

The ossicles, which consist of the malleus, incus, and stapes, are small bones in the middle ear that serve to amplify sound waves and transmit them to the inner ear. The bony labyrinth, tympanic membrane, and eustachian tube are all important structures involved in hearing, but they do not specifically amplify sound waves.

Question 6

Middle ear disorders are best treated by which of the following?

Accepted Answer

Middle ear disorders are usually treated with prescription medications prescribed by an ear, nose, and throat specialist, such as antibiotics for infections or corticosteroids for inflammation. Over-the-counter medications or other treatments like alternating warm and cold compresses or iontophoresis may not address the underlying issue causing the disorder and could potentially make it worse.

Question 7

Which of the following structures in the inner ear is responsible for equilibrium and balance?

Accepted Answer

The vestibular apparatus, which is composed of the semicircular canals and otolith organs, is responsible for equilibrium and balance. The membranous labyrinth and cochlea are involved in hearing, while the bony labyrinth is the protective bony structure that houses the inner ear.

Question 8

Which of the following symptoms is found in acute tympanic membrane perforation?

Accepted Answer

The answer of Which of the following symptoms is found...

Question 9

Which of the following structures joins the external auditory canal and the middle ear?

Accepted Answer

The tympanic membrane, also known as the eardrum, is the structure that separates the external auditory canal from the middle ear. It vibrates in response to sound waves, transmitting sound from the external environment to the ossicles in the middle ear.

Question 10

Which of the following structures in the inner ear is the primary organ of hearing?

Accepted Answer

The cochlea is known as the primary organ of hearing in the inner ear, as it contains numerous hair cells that help to detect sound waves and transmit the signal to the brain. The membranous labyrinth and bony labyrinth are also important structures in the inner ear, but they are not directly involved in the hearing process. The vestibular apparatus, on the other hand, is responsible for detecting changes in head position and movement, and helps to maintain balance and spatial awareness.

Quiz 43: Overview of the Ear