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Vestibular System Quiz

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Questions and Answers

Where is the macula of the utricle located?

On a vertical layer

At the base of the semicircular canals

In the bulged bottom part of the canals

On a horizontal planar layer (correct)

Which part of the vestibular system is important in stabilizing head and body posture?

Otolith organs (correct)

Semicircular canals

Supporting cells

Vestibular hair cells

What is the function of the otolith organs?

Processing sensory information from self-motion, head position and spatial orientation

Linear acceleration/deceleration & static head position/angle relative to the gravitational axis (correct)

Rotational acceleration/deceleration

Stabilizing head and body posture

Where are the three semicircular canals (SCC) located?

Inner ear structure: labyrinth (A) Signup and view all the answers

What is the location of the macula of the saccule?

On a vertical layer (C) Signup and view all the answers

What is the function of the semicircular canals (SCC)?

Rotational acceleration/deceleration (B) Signup and view all the answers

Where is the sensory epithelium located?

In the utricle and saccule (otolith organs) as macula (C) Signup and view all the answers

What is the function of the gelatinous cupula in the macula of the saccule and utricle?

To detect linear acceleration and head tilts (B) Signup and view all the answers

What is the role of otoliths in the vestibular system?

To add mass and move with gravity, aiding in the detection of linear acceleration (B) Signup and view all the answers

What is the function of the crista within the semicircular canals?

To detect rotational movements (B) Signup and view all the answers

Select the correct statement on vestibular system.

Vestibular sensory epithelia can be found in macula and crista (B) Signup and view all the answers

Select the correct function of otoliths or otoconia

Enhance the movement sensing by hair cells (A) Signup and view all the answers

Select the correct statement on vestibular pathway and body balance control

Vestibulo-spinal reflex adjusts muscles in the trunk and limbs to maintain body posture balance (D) Signup and view all the answers