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The Role of the Inner Ear in Proprioception

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The Role of the Inner Ear in Proprioception

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Questions and Answers

What is the function of the utricle in the inner ear?

Generates nerve impulses during rotation

Responds to changes in vertical head movement

Responds to changes in horizontal head movement (correct)

Transmits signals through the vestibular nerve

Which cells are responsible for detecting movement and rotation in the inner ear?

Hair Cells (correct)

Vestibular Nerve fibers

Stereocilia and Kinocilium

Structural Cells

What causes the opening or closing of ion channels in the hair cells of the inner ear?

Mechanical deflection due to head movement (correct)

Transmission through the vestibular nerve

Nerve impulses during rotation

Integration of proprioceptive information

Where are stereocilia and kinocilium found?

On the surface of hair cells Signup and view all the answers

What is the role of proprioceptive information from the vestibular system?

Integrated with input from other sensory systems to maintain balance Signup and view all the answers

What is the function of the saccule in response to head movement?

Responds to changes in vertical head movement Signup and view all the answers

What is the role of the otolith organs in proprioception?

Detect linear acceleration and changes in head position relative to gravity Signup and view all the answers

What do the semicircular canals detect?

Rotational movements of the head Signup and view all the answers

What is the function of the hair cells within the semicircular canals?

Respond to the flow of fluid (endolymph) during head rotation Signup and view all the answers

What provides information about head rotation in three-dimensional space?

Combined input from all three semicircular canals Signup and view all the answers

What is the main role of the inner ear in proprioception?

Play a crucial role in proprioception Signup and view all the answers

What detects changes in head position relative to gravity?

Otolith Organs (Utricle and Saccule) Signup and view all the answers

What structures are oriented in three perpendicular planes?

Semicircular Canals Signup and view all the answers

What stimulates hair cells within the otolith organs?

Gelatinous matrix shift with changes in head position Signup and view all the answers