Cranial Nerves Lab Evaluation
Access The Exact Questions for Cranial Nerves Lab Evaluation
💯 100% Pass Rate guaranteed
🗓️ Unlock for 1 Month
Rated 4.8/5 from over 1000+ reviews
- Unlimited Exact Practice Test Questions
- Trusted By 200 Million Students and Professors
Starting from
$30/month
What’s Included:
- Unlock 100 + Actual Exam Questions and Answers for Cranial Nerves Lab Evaluation on monthly basis
- Well-structured questions covering all topics, accompanied by organized images.
- Learn from mistakes with detailed answer explanations.
- Easy To understand explanations for all students.
Unlock full access to every exam question, video guide and study resource available. Register now. Cranial Nerves Lab Evaluation
Free Cranial Nerves Lab Evaluation Questions
1. The glossopharyngeal nerve is assessed by asking the client to __________ and move their __________ __________.
- A. smile / eyebrows / upward
- B. swallow / soft palate / up and down
- C. protrude the tongue / tongue tip / side to side
- D. clench teeth / jaw / forward and backward
Explanation
The glossopharyngeal nerve (CN IX) is evaluated by observing swallowing and soft-palate movement. Asking the client to swallow and watching the soft palate move up and down assesses gag reflex and pharyngeal muscle function. Proper elevation indicates intact CN IX function, essential for swallowing and airway protection.
2. Damage to which of the following cranial nerves can result in ptosis, double vision, or unequal pupils?
- A. Olfactory
- B. Optic
- C. Oculomotor
- D. Trochlear
- E. Trigeminal
Explanation
C. Oculomotor The oculomotor nerve (CN III) controls most extraocular eye movements, raises the eyelid, and constricts the pupil. Injury to CN III can cause ptosis (drooping eyelid), diplopia (double vision) from impaired eye movement, and anisocoria (unequal pupils) due to loss of parasympathetic input. These are hallmark signs of cranial nerve III dysfunction, often seen in increased intracranial pressure, aneurysm, or midbrain lesions.
3. Rapid administration of furosemide can cause damage to which of the following cranial nerves?
- A. Trochlear
- B. Vestibulocochlear
- C. CN 7
Explanation
B. Vestibulocochlear Rapid IV administration of furosemide can be ototoxic, leading to damage of Cranial Nerve VIII (Vestibulocochlear nerve). This nerve controls hearing and balance. Ototoxicity may result in tinnitus, hearing loss, vertigo, and balance disturbances. To prevent this adverse effect, furosemide should be administered slowly and within recommended IV rate limits.
4. Which of the following cranial nerves is responsible for medial movement of the eye?
- A. CN 3
- B. CN 4
- C. CN 6
Explanation
A. CN 3 Cranial Nerve III (Oculomotor nerve) innervates the medial rectus muscle, which moves the eye medially (toward the nose). When CN III is functioning properly, the eye can adduct smoothly. Damage to this nerve results in difficulty moving the eye inward and may cause diplopia (double vision) and lateral drifting of the affected eye (strabismus).
5. Deviation of the uvula indicates damage to which of the following cranial nerves:
- A. Hypoglossal
- B. Glossopharyngeal
- C. CN VII
- D. CN 8
Explanation
B. Glossopharyngeal Although the vagus nerve (CN X) is the primary nerve associated with uvular deviation, the glossopharyngeal nerve (CN IX) works closely with CN X in palatal movement and the gag reflex. Damage in this pathway results in the uvula deviating away from the side of the lesion due to unopposed pull of the intact muscles. A weak soft palate droops on the affected side, and the uvula is pulled toward the normal side.
6. Damage to which of the following cranial nerves can result in strabismus?
- A. Olfactory
- B. Optic
- C. Oculomotor
- D. Trochlear
- E. Trigeminal
Explanation
D. Trochlear The trochlear nerve (CN IV) innervates the superior oblique muscle, which controls downward and inward eye movement. Damage to CN IV causes vertical strabismus, leading to misalignment of the eyes. Patients often tilt their head to the opposite side of the lesion and report vertical diplopia, especially when walking downstairs or reading. Trochlear palsy is a well-known cause of strabismus due to impaired superior oblique muscle function.
7. Cranial nerve one (CN I), the _________, is instrumental in our sense of _________.
- A. vestibulocochlear nerve / balance
- B. trigeminal nerve / facial sensation
- C. olfactory nerve / smell
- D. optic nerve / vision
Explanation
Cranial Nerve I is called the olfactory nerve and its primary function is to carry sensory information related to smell from the nose to the brain. This nerve is responsible for detecting odors and transmitting smell signals to the brain for interpretation.
8. Which cranial nerve innervates the muscles involved in shoulder shrugging and in turning the head?
- A. Abducens
- B. CN X
- C. Accessory
- D. CN XII
- E. CN IV
Explanation
C. Accessory The accessory nerve (Cranial Nerve XI) innervates the sternocleidomastoid and trapezius muscles, which are responsible for turning the head and elevating (shrugging) the shoulders. Injury to CN XI results in weakness or inability to shrug the shoulders or rotate the head against resistance.
9. The lateral rectus is innervated by which cranial nerve:
- A. Oculomotor
- B. Trochlear
- C. Abducens
Explanation
C. Abducens The abducens nerve (Cranial Nerve VI) innervates the lateral rectus muscle, which is responsible for abducting the eye—moving the eyeball outward, away from the nose. Injury to CN VI results in the inability to abduct the affected eye, causing medial deviation (esotropia) and horizontal double vision.
10.
Click one area on the image to show where the nurse would assess cranial nerve 11. Select your answer by clicking the desired location on the image below. To move a pin, click another location on the image. To remove a pin, click it once.
- A. Side of the neck over the sternocleidomastoid muscle
- B. Upper shoulder over the trapezius muscle
- C. Forehead center
- D. Tip of the chin
- E. Tongue surface
Explanation
Correct Selections Explanation A. Side of the neck over the SCM Cranial Nerve XI innervates the sternocleidomastoid muscle. The nurse palpates the SCM by asking the patient to rotate the head against resistance. This assesses neck strength and CN XI function. B. Upper shoulder over the trapezius The trapezius muscle is also controlled by Cranial Nerve XI. The nurse tests this by placing hands on the shoulders and asking the patient to shrug upward against resistance. Weakness suggests accessory nerve damage.
How to Order
1
Select Your Exam
Click on your desired exam to open its dedicated page with resources like practice questions, flashcards, and study guides.Choose what to focus on, Your selected exam is saved for quick access Once you log in.
2
Subscribe
Hit the Subscribe button on the platform. With your subscription, you will enjoy unlimited access to all practice questions and resources for a full 1-month period. After the month has elapsed, you can choose to resubscribe to continue benefiting from our comprehensive exam preparation tools and resources.
3
Pay and unlock the practice Questions
Once your payment is processed, you’ll immediately unlock access to all practice questions tailored to your selected exam for 1 month .