Vestibular System

Question 1

Components of the vestibular system

Answer 1

• Semicircular canal

- Otoliths

Question 2

What does the semicircular canal system do?

Answer 2

Detects rotational movement

Question 3

What are the three types of semicircular canals?

Answer 3

• Horizontal (or lateral)
• Anterior semicircular canal
• Posterior (or inferior)

Question 4

The otolithic organs

Answer 4

• Saccule

- Utricle

Question 5

What is nystagmus?

Answer 5

• Causes the eyes to look involuntarily from side to side in a rapid, swinging motion
• Sometime cause the eyes to jerk up and down

Question 6

What is Meniere’s disease

Answer 6

• A rare disorder that affects the inner ear

- Can cause vertigo, tinnitus, hearing loss, and a feeing of pressure deep inside the ear