Vestibular disease

Question 1

What does a head tilt indicate?

Answer 1

a lesion in the vestibular system

Question 2

What does the peripheral vestibular system include?

Answer 2

1. receptors in inner ear

2. vestibular portion of cranial nerve VIII

Question 3

What does the cental vestibular system consist of?

Answer 3

1. brainstem vestibular nuclei in medulla oblongata

2. neurons in flocculonodular lobe of cerebellum

Question 4

What is the first step in diagnosis of patients with vestibular disease?

Answer 4

determination whether patient has peripheral or central disease

Question 5

What are clinical signs of vestibular disease?

Answer 5

1. head tilt
2. circling
3. ataxia
4. rolling
5. nyastagmus

Question 6

Is head tilt on the same side or opposite the lesion?

Answer 6

same side

Question 7

Why can animals with vestibular disease vomit or salivate?

Answer 7

because they have motion sickness

Question 8

With animals with vestibular disease that have spontaneous nystagmus, is the fast phase directed toward the lesion or away?

Answer 8

away from the lesion

Question 9

What type of nystagmus is seen with peripheral vestibular disease?

Answer 9

horiztonal or rotary

Question 10

What types of nystagmus are seen with central vestibular dz?

Answer 10

1. horizontal or rotary
2. vertical nystagmus
3. nystagmus that changes direction with changes in body position