Cranial Nerves Flashcards
Cranial nerves that do not emerge from the brainstem:
- Olfactory
- Optic
- Oculomotor
- A, B
- A, B, C
A, B
Cranial nerves originating from the midbrain:
- Oculomotor
- Trochlear
- Trigeminal
- A, B
- A, B, C
A, B
Cranial nerves originating from the pons:
- Trigeminal
- Abducens
- Vagus
- A, B
- A, B, C
A, B
Cranial nerves originating from the medulla:
- Glossopharyngeal
- Vagus
- Spinal accessory
- A, B
- A, B, C
A, B, C
General sensations:
- Relayed by spinal nerves
- Relayed by cranial nerves
- A, B
- Neither
A, B
Special sensations:
- Relayed by spinal nerves
- Relayed by cranial nerves
- A, B
- Neither
Relayed by cranial nerves
Smell, sight, hearing:
- Special senses
- General senses
- A,B
- Neither
Special senses
Oculomotor nerve has:
- Somatic motor function
- Visceral motor function
- A, B
- Neither
A, B
Cranial nerves motor to extraocular muscles:
- III
- IV
- V
- A, B
- A, B, C
A, B
The medial rectus:
- Abducts the eye
- Adducts the eye
Adducts the eye
Tests cranial nerve VI:
- Medial rectus
- Lateral rectus
Lateral rectus
Which cranial nerve is tested if the eye looks down and adducts?
- Oculomotor
- Trochlear
- Abducens
- Neither
Trochlear
Sensory innervation of the face:
- Oculomotor
- Trochlear
- Abducens
- Neither of the choices
Neither of the choices
Cranial nerve for general sensation of the tongue, mandibular teeth, and gums:
- Trigeminal nerve
- Glossopharyngeal nerve
- Facial nerve
- Neither of the choices
Trigeminal nerve
Innervates the masseter, temporalis and pterygoid muscles:
- Glossopharyngeal
- Facial nerve
- Vagus nerve
- Neither of the choices
Neither of the choices
Which is innervated by the facial nerve?
- Frontalis
- Zygomaticus
- Orbicularis oculi
- A, B
- A, B, C
A, B, C
The chorda tympani:
- Is a branch of the facial nerve
- Provides the general sensation of the tongue
- Innervates the tympanic membrane
- A, B
- A, B, C
Is a branch of the facial nerve
The facial nerve:
- Closes the eye
- Tastes the pie
- Innervates the parotid gland
- A, B
- A, B, C
A, B
The vestibulocochlear nerve carries:
- Special sensory
- Somatic efferent
- Both
- Neither
Special sensory
Lesions in CN VIII cause:
- Hearing impairment
- Vertigo
- Loss of balance
- A, B
- A, B, C
A, B, C
Glossopharyngeal nerve CN IX:
- Provides taste to the posterior 1/3 of the tongue
- Conveys general sensations of the tongue
- Innervates the stylopharyngeus
- A, B
- A, B, C
A, B, C
The Vagus nerve innervates muscles of:
- Larynx
- Pharynx
- Palate
- A, B
- A, B, C
A, B, C
The vagus nerve:
- Provides general sensations of larynx and pharynx
- Is tested in the gag reflex with the CN XII
- A, B
- A, B, C
Provides general sensations of larynx and pharynx
The right spinal accessory nerve innervates the muscle that causes the head to (Note: Look for the specific action of the muscle):
- Bend to the right and look to the left
- Bend to the right and look to the right
- Bend to the left and look to the right
- Bend to the left and look to the left
Bend to the right and look to the left
If the tongue is pointing forward symmetrically upon testing:
- The glossopharyngeal nerves left and right are intact
- The vagus nerves left and right are intact
- Neither of the choices
Neither of the choices
Horner’s syndrome features:
- Ptosis
- Anhidrosis
- Miosis
- A, B
- A, B, C
A, B, C
The sympathetic innervation to the head comes from:
- The cranial nerves III, VII, IX, and X
- Thoracic spinal cord T1
- The vagus nerve
- A, B
- None of the choices
Thoracic spinal cord T1
Which of the following cranial nerves originate from the medulla?
- Vestibulocochlear
- Oculomotor
- Spinal accessory
- Facial
Vestibulocochlear
Which group of cranial nerves supply the extraocular muscles?
- V, VI and VII
- IX and X
- II, III and IV
- III, IV, and VI
III, IV, and VI
Which of the following illustrate the function of the facial nerve?
- Salivation of the parotid gland
- Movement of the jaw
- Sensation of the cheek
- Closes the eye
Sensation of the cheek
Sensory innervation of the face is provided by which cranial nerve?
- Trochlear
- Oculomotor
- Abducens
- Trigeminal
Trigeminal
The oculomotor nerve:
- CN IV
- CN I
- CN II
- CN III
CN III
Which of the following exteaocular muscles is innervated by cranial nerve VI?
- Lateral rectus
- Medial rectus
- Superior oblique
- Inferior oblique
Lateral rectus
The vestibulocochlear nerve carries _____:
- Sensory
- Both of the choices
- Motor
Sensory
Cranial nerve for general sensation of the mandibular teeth, and gums:
- Trigeminal nerve
- Vagus nerve
- Facial nerve
- Glossopharyngeal nerve
Trigeminal nerve
Which cranial nerve is tested if the eye looks down and in?
- Trochlear
- Oculomotor
- Abducens
Oculomotor
Which of the following cranial nerves exit from the pons?
- Trochlear
- Oculomotor
- Hypoglossal
- Trigeminal
Trigeminal
Cranial nerves motor to extraoccular muscles:
- CN III
- CN V
- Both
- Neither
Both
This cranial nerve innervates the superior oblique muscle:
- CN II
- CN III
- CN IV
- CN VI
CN IV
Cranial nerves originating from the pons:
- Trigeminal
- Abducens
- Both
- Neither
Both
This cranial nerve innervates the lateral rectus muscle:
- CN II
- CN III
- CN IV
- CN VI
CN VI
A patient who has visual acuity problems most likely has problems with this cranial nerve:
- CN I
- CN II
- CN VII
- None of these
CN II
Your patient is unable to smell. You suspect there is a lesion in Cranial Nerve:
- I
- II
- III
- IV
I
Cranial nerves originating from the medulla:
- Glossopharyngeal
- Vagus
- Spinal accessory
- All of these
All of these
You noted that your patient has irregularities in his extraoccular movement. Which cranial nerves may possibly be affected?
- CN III
- CN IV
- CN VI
- All of these
All of these
Bell’s Palsy presents with weakness of the muscles on one side of the face. It may affect this Cranial Nerve:
- Trigeminal
- Facial
- Both
- Neither
Facial
Your patient is unable to feel any sensation on the right side of the face. Which may be affected?
- Right trigeminal nerve
- Left trigeminal nerve
- Right facial nerve
- Left facial nerve
Right trigeminal nerve
Your patient has sensorineural hearing loss. Which nerve is most possibly affected?
- CN III
- CN VIII
- CN IX
- CN X
CN VIII
Your stroke patient has absent gag reflex. Which nerve/s may be affected?
- CN IX
- CN X
- Both
- Neither
Both
When your patient protrudes her tongue, it deviates to the right side. Which cranial nerve may be affected?
- Right CN XII
- Left CN XII
- Right CN XI
- Left CN XI
Right CN XII
Your patient presents with winging of the right scapula. He is also unable to shrug his right shoulder. Which cranial nerve may be affected?
- CN IX
- CN X
- CN XI
- CN XII
CN XI
Occulomotor nerve is also known as:
- CN II
- CN III
- CN V
- None of these
CN III