Cranial Nerve VIII and Vestibular Function Quiz

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Which cranial nerve is responsible for the sense of smell?

Optic nerve (cranial nerve II)

Olfactory nerve (cranial nerve I) (correct)

Facial nerve (cranial nerve VII)

Vagus nerve (cranial nerve X)

How can basal meningiomas cause a loss of smell?

By invading the cribriform plate (correct)

By damaging the trigeminal nerve

By affecting the hypoglossal nerve

By compressing the facial nerve

Which cranial nerve is typically evaluated for visual acuity, visual fields, and fundoscopic examination?

Optic nerve (cranial nerve II) (correct)

Olfactory nerve (cranial nerve I)

Vestibulocochlear nerve (cranial nerve VIII)

Glossopharyngeal nerve (cranial nerve IX)

What test can be performed to evaluate the sense of smell in a patient?

Present smell cards with distinctive scents Signup and view all the answers

In which type of infections might inflammation of the nasal mucosa lead to a loss of smell?

Upper respiratory infections Signup and view all the answers

Why should the sense of smell be evaluated after head trauma?

To ensure the olfactory nerve is intact Signup and view all the answers

How is the vagus nerve primarily tested in a patient?

By observing the symmetric rise of the palate while saying 'ah' Signup and view all the answers

What is the main function of the glossopharyngeal nerve mentioned in the text?

Carries sensation from the posterior pharynx and larynx Signup and view all the answers

How is cranial nerve XI, the spinal accessory nerve, primarily tested for function?

By assessing shoulder shrug movement Signup and view all the answers

Why is the routine use of the gag reflex in clinical practice limited according to the text?

Low sensitivity and specificity Signup and view all the answers

Which cranial nerve enables tongue movement and controls muscles important for speech and swallowing?

Hypoglossal nerve Signup and view all the answers

How is the soft palate innervated according to the text?

By the vagus nerve Signup and view all the answers

Which method is used to check distance vision during a comprehensive eye examination?

Snellen chart Signup and view all the answers

What is the target used in the confrontation method to evaluate visual fields?

Examiner's finger Signup and view all the answers

What is the main function of cranial nerves III, IV, and VI?

Control position of eyeballs Signup and view all the answers

How can a lesion causing ptosis be differentiated between Horner's syndrome and CN III lesion?

By noting pupillary size on the side of the ptotic eyelid Signup and view all the answers

Which nerve supplies taste sensation to the anterior part of the tongue?

Facial nerve (VII) Signup and view all the answers

What muscles lift the eyelid?

Levator palpebrae muscle and superior tarsal muscle Signup and view all the answers

How can one differentiate between miosis and mydriasis in pupillary size?

$Pupils constrict for miosis and dilate for mydriasis$ Signup and view all the answers

'Papilledema' is associated with which ocular structure during examination?

Optic disk Signup and view all the answers

'Conjugate' eye movements refer to movements that are:

$Normal$ Signup and view all the answers

What is tested by applying sugar or salt solutions to the anterior tongue?

Taste Signup and view all the answers

Which cranial nerve carries auditory and vestibular input?

Cranial nerve VIII Signup and view all the answers

What is the sense provided by the vestibular system?

Balance Signup and view all the answers

Nystagmus, a rhythmic eye movement, can be caused by lesions in which areas?

Both peripheral and central lesions Signup and view all the answers

Which test is used to differentiate conductive from sensorineural hearing loss?

Rinne test Signup and view all the answers

Where is a vibrating tuning fork placed in the Weber test?

At the vertex of the skull Signup and view all the answers

What is conjugate paresis?

Inability to move both eyes together in a single direction Signup and view all the answers

'Ah' is used to test which cranial nerve?

Vagus nerve Signup and view all the answers