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Vestibular System Hair Cells and Otolithic Membrane

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Vestibular System Hair Cells and Otolithic Membrane

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Questions and Answers

What is the function of the maculae in the ear?

Receptor for sense of head position (correct)

Responsible for taste sensation

Receptor for hearing sounds

Regulates body temperature

Which type of hair cells in the ear have a flask-shaped appearance?

Type II hair cells

Tympanic membrane cells

Ceruminous glands

Type I hair cells (correct)

What is the role of otoliths in the ear?

Provide balance cues by responding to linear acceleration (correct)

Help in localization of sound sources

Aid in hearing high-pitched sounds

Produce ear wax

Which part of the ear contains endolymph and is lined by simple squamous epithelium?

Semicircular ducts Signup and view all the answers

What is the function of the semicircular ducts in the ear?

Maintain balance by detecting rotational movements Signup and view all the answers

Which part of the ear is responsible for secreting a gelatinous glycoprotein layer?

Ceruminous glands Signup and view all the answers

What is the function of the Crista ampularis?

To detect rotational acceleration of the head Signup and view all the answers

Which structure is responsible for protecting the tympanic membrane?

Eustachian tube Signup and view all the answers

What can lead to accumulation of fluid in the middle ear?

Blockage of the Eustachian tube Signup and view all the answers

Which external ear structure is thin, semi-transparent, and flexible?

Ear drum Signup and view all the answers

What is the correct receptor cell type within the organ of Corti?

Hair cells Signup and view all the answers

Which structure is not part of the external ear?

Vestibule, semicircular canals and cochlea Signup and view all the answers

What is the main function of the auricle in the ear?

To collect and focus sound waves toward the external auditory meatus Signup and view all the answers

Which part of the auricle is highly vascular and poorly innervated?

Lobule of the ear Signup and view all the answers

What is the impact of excessive accumulation of cerumen in the ear?

Conductive deafness Signup and view all the answers

Which gland in the external auditory meatus secretes cerumen (earwax)?

Ceruminous gland Signup and view all the answers

How does the tympanic membrane function in response to sound waves?

Converts sound waves into mechanical vibration Signup and view all the answers

What covers the lobule of the ear at its lower end?

Adipose connective tissue Signup and view all the answers