Special Sensory Systems Poll Everywhere

What is marked?

Cochlea

What is marked?

Semicircular Canals

Which cranial nerve is attached to the hair cells in the cochlea and semicircular canals?

CN VII

CN VIII

CN IX

CN X

CN XI

CN VIII

The endolymph fluid contains a high concentration of K+ in the vestibular and auditory systems (True/False)

True

Hair cells are located:

At the base of each semicircular canal

Utricle

saccule

Cochlear duct (scala media)

All of the above

All of the above

When hair cells stereocilia bend from short to the tall kinocilium, K+ enters the cell and the cell is depolarized (True/False)

True

The utricle and saccule hair cells detect linear acceleration (True/False)

True

The semicircular canals hair cells detect head rotation (True/False)

True

Which tract activates the antigravity muscles?

Medial vestibulospinal tracts

v

None of the above

Lateral vestibulospinal tracts

In the vestibular-ocular reflex (VOR), the fast eye movement in the direction of the head turn is called nystagmus (True/False)

True

In the caloric vestibular test, cold water poured into the right ear will cause nystagmus to:

the right side

the left side

both sides

neither side

the left side

A head turn to the left, causes nystagmus to the left (True/False)

True

In the vestibular rotatory test, a spin to the right will result in nystagmus to the

left side

right side

neither side

left side

Vestibular signs and symptoms include:

Spontaneous nystagmus

Decreased antigravity muscle reflexes

Motion sickness

Vertigo

All of the above

All of the above

High frequency sound waves are received at the base of the cochlea whereas low frequency sound waves are received at the apex of the cochlea (True/False)

True

Ventral cochlear nuclei

Timing of sounds

Dorsal cochlear nuclei

Vertical sound location

Superior Olivary nuclei

First place to compare input from both ears, analyzes to help locate the sound source

Inferior colliculi

Integrates function from all brainstem nuclei

Vestibular schwannoma is an example of a sensorineural lesion (True/False)

True

Rinne's test will determine if your patient has a conductive hearing loss (True/False)

True

The 1st neuron in the visual pathway is the:

Rod

Cone

Bipolar cell

Ganglion cell

None of the above

Bipolar cell

What area (1-6) when lesioned will cause bitemporal hemianopsia (tunnel vision)

Lesion #2, Optic Chiasm (medial portion)

What area (1-6) when lesioned will cause contralateral homonymous superior quadrantopsia

Lesion #5, Meyer’s Loop in temporal lobe

Which 2 cranial nerves are part of the pupillary light reflex?

II & III

III & IV

III & VI

II & IV

II & V

II & III

Which cell is the glial-like supporting cell for the olfactory system?

Basal cell

Sustentactular cell

Olfactory nerve

None of the above

Sustentactular cell

A lesion to the olfactory nerve or the olfactory bulb and tract will result in:

Ipsilateral ageusia

Ipsilateral hemiballism

Contralateral homonymous hemianopsia

Ipsilateral ansomia

None of the above

Ipsilateral ansomia

Which 2 cranial nerves relay the sense of taste?

VI & VII

II & VI

VII & IX

VII & VIII

VIII & IX

VII & IX

Taste buds regenerate every 10 - 14 days (True/False)

True

List the 5 basic types of tase

-Salty
-Sour
-Sweet
-Bitter
-Umami

Which of the following are clinical terms describing taste lesions?

Ageusia

Hypogeusia

Dysgeusia

All of the above

None of the above

All of the above