Dynamic Equilibrium Flashcards

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1
Q

How do semicircular canals work?

A

Contains liquid that move when we move our head which bends small nerve hairs that send action potentials to the brain

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2
Q

How does the brain know what direction we are moving?

A

Depending on where in the canal the signal comes from, our brain will interpret out motion in different directions

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3
Q

What are the utricle and saccule?

A

Small chambers in the vestibule

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4
Q

How does the utricle and saccule detect linear acceleration?

A

Use nerve hair cells

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5
Q

What are the utricle and saccule filled with?

A

Fluid and calcium carbonate stones

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6
Q

What are the calcium carbonate stones called?

A

Otoliths

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7
Q

How do otoliths help with dynamic equilibrium?

A

When you move the otoliths hit the nerve cells and send an action potential

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8
Q

What is dynamic equilibrium?

A

Balance while in motion

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9
Q

What is static equilibrium?

A

Balance while motionless

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10
Q

Where do we receive information about our body position?

A

From sensory neurons all over the body

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11
Q

What in the ears relay information about the head position?

A

Utricle and saccule

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12
Q

Where is the signal sent?

A

To the cerebrum

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13
Q

Motion is detected by

A

Semicircular canals

Utricle and Saccule

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