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Anatomy of the Human Ear

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Questions and Answers

What is the primary function of the cerumen in the ear?

To keep the tympanic membrane soft and flexible (correct)

To sense position and head movements

To conduct sound waves to the external auditory canal

To equalize air pressure on both sides of the tympanic membrane

What is the shape of the external auditory canal in adults?

Linear

Spiral

S-shaped (correct)

Circular

What separates the middle ear from the inner ear?

Tympanic membrane

Eustachian tube

Ossicles

A bony partition (correct)

What is the function of the eustachian tube?

To equalize air pressure on both sides of the tympanic membrane Signup and view all the answers

What is the name of the sensory organ for hearing?

Spiral organ of Corti Signup and view all the answers

What is the function of the ossicles in the middle ear?

To transmit sound waves from the middle ear to the inner ear Signup and view all the answers

What is the primary function of the perilymph in the inner ear?

Transmitting sound vibrations and mechanical pressure to the sensory receptors in the cochlea Signup and view all the answers

What is the main difference between conductive and sensorineural hearing loss?

Location of damage in the ear Signup and view all the answers

What is the function of the saccule in the vestibule?

Maintaining vertical balance Signup and view all the answers

What is the name of the nerve that connects the vestibular nerve with the cochlear nerve to form cranial nerve VIII?

Vestibulocochlear nerve Signup and view all the answers

What is the term for fungal ear infection, also known as 'swimmer's ear'?

Otitis externa Signup and view all the answers

What is the term for a subjective feeling of spinning around, often caused by inner ear problems?

Vertigo Signup and view all the answers