Facial Nerve Flashcards
1
Q
- Which cranial nerve is the facial nerve?
a) CN V b) CN VI c) CN VII d) CN VIII
A
c) CN VII
2
Q
- Which type of fibers are carried by the facial nerve?
a) Sensory only b) Motor only c) Mixed (sensory and motor) d) Parasympathetic only
A
c) Mixed (sensory and motor)
3
Q
- What is the motor function of the facial nerve?
a) Controls chewing muscles b) Innervates muscles of facial expression c) Provides head rotation d) Assists in swallowing
A
b) Innervates muscles of facial expression
4
Q
- The parasympathetic function of the facial nerve includes innervation of which gland?
a) Parotid gland b) Sublingual gland c) Thyroid gland d) Pineal gland
A
b) Sublingual gland
5
Q
- The chorda tympani branch of the facial nerve is responsible for:
a) Sensation from the scalp b) Taste from the anterior two-thirds of the tongue c) Vision d) Hearing
A
b) Taste from the anterior two-thirds of the tongue
6
Q
- Damage to the facial nerve at the stylomastoid foramen results in:
a) Loss of salivary secretion b) Complete facial paralysis c) Impaired swallowing d) Loss of vision
A
b) Complete facial paralysis
7
Q
- Which muscle is innervated by the buccal branch of the facial nerve?
a) Buccinator b) Masseter c) Temporalis d) Levator palpebrae
A
a) Buccinator
8
Q
- Which reflex involves the facial nerve as the efferent limb?
a) Corneal (blink) reflex b) Gag reflex c) Pupillary light reflex d) Jaw jerk reflex
A
a) Corneal (blink) reflex
9
Q
- What is the mnemonic for remembering the branches of the facial nerve?
a) To Zanzibar By Motor Car b) Take Zebras Back to My Car c) Tell Zebra Be My Companion d) Temporal Zygomatic Buccal Mandibular Cervical
A
a) To Zanzibar By Motor Car
10
Q
- What type of fibers does the greater petrosal nerve carry?
a) Sensory b) Sympathetic c) Parasympathetic d) Motor
A
c) Parasympathetic
11
Q
- Which nucleus is responsible for the motor fibers of the facial nerve?
a) Trigeminal motor nucleus b) Facial motor nucleus c) Hypoglossal nucleus d) Vagal nucleus
A
b) Facial motor nucleus
12
Q
- The posterior auricular branch of the facial nerve innervates:
a) Buccinator b) Frontalis c) Occipitalis d) Orbicularis oris
A
c) Occipitalis
13
Q
- Damage to the upper motor neuron of the facial nerve results in:
a) Ipsilateral facial paralysis b) Contralateral lower face paralysis c) Complete contralateral paralysis d) No paralysis
A
b) Contralateral lower face paralysis
14
Q
- The facial nerve exits the skull through which foramen?
a) Jugular foramen b) Stylomastoid foramen c) Foramen ovale d) Internal auditory meatus
A
b) Stylomastoid foramen
15
Q
- Which branch of the facial nerve carries preganglionic parasympathetic fibers to the submandibular ganglion?
a) Greater petrosal nerve b) Chorda tympani c) Buccal branch d) Temporal branch
A
b) Chorda tympani
16
Q
- Bell’s palsy primarily affects which cranial nerve?
a) CN V b) CN VII c) CN IX d) CN X
A
b) CN VII
17
Q
- Ramsay Hunt Syndrome involves reactivation of which virus affecting the facial nerve?
a) Epstein-Barr virus b) Varicella-zoster virus c) Herpes simplex virus d) Cytomegalovirus
A
b) Varicella-zoster virus
18
Q
- Which branch of the facial nerve is responsible for closing the eye?
a) Temporal branch b) Zygomatic branch c) Buccal branch d) Cervical branch
A
b) Zygomatic branch
19
Q
- What is the clinical significance of the nervus intermedius?
a) Carries motor fibers to the tongue b) Carries sensory and parasympathetic fibers c) Carries motor fibers to the jaw d) Carries proprioceptive fibers
A
b) Carries sensory and parasympathetic fibers
20
Q
- The facial nerve is associated with which embryological structure?
a) First pharyngeal arch b) Second pharyngeal arch c) Third pharyngeal arch d) Fourth pharyngeal arch
A
b) Second pharyngeal arch
21
Q
- Which muscle is responsible for raising the eyebrows and is innervated by the temporal branch of the facial nerve?
a) Orbicularis oculi b) Frontalis c) Platysma d) Zygomaticus major
A
b) Frontalis
22
Q
- Which of the following conditions is associated with vesicles on the ear and facial paralysis?
a) Bell’s palsy b) Ramsay Hunt Syndrome c) Trigeminal neuralgia d) Guillain-Barré Syndrome
A
b) Ramsay Hunt Syndrome
23
Q
- Which component of the facial nerve is responsible for lacrimal gland secretion?
a) General sensory afferent b) General visceral efferent c) Special sensory afferent d) General somatic efferent
A
b) General visceral efferent
24
Q
- A lesion of the facial nerve within the internal acoustic meatus would affect:
a) Only motor fibers b) Taste and parasympathetic function c) Hearing and balance d) All fibers of the facial nerve
A
d) All fibers of the facial nerve
25
25. The efferent limb of the corneal reflex is mediated by which cranial nerve?
a) CN V b) CN VII c) CN IX d) CN X
b) CN VII
26
26. Which branch of the facial nerve is involved in taste from the anterior two-thirds of the tongue?
a) Temporal branch b) Chorda tympani c) Greater petrosal nerve d) Marginal mandibular branch
b) Chorda tympani
27
27. Which motor function is preserved in an upper motor neuron lesion of the facial nerve?
a) Lower face movement b) Eye closure c) Forehead movement d) Mouth movement
c) Forehead movement
28
28. Which facial nerve branch is responsible for innervating the platysma muscle?
a) Temporal branch b) Cervical branch c) Buccal branch d) Marginal mandibular branch
b) Cervical branch
29
29. The geniculate ganglion is associated with which cranial nerve?
a) CN V b) CN VII c) CN IX d) CN X
b) CN VII
30
30. Which symptom is most commonly associated with Bell’s palsy?
a) Difficulty chewing b) Complete ipsilateral facial paralysis c) Loss of sensation in the tongue d) Vision changes
b) Complete ipsilateral facial paralysis
31
31. Damage to the zygomatic branch of the facial nerve would affect which function?
a) Raising the eyebrows b) Closing the eye c) Smiling d) Frowning
b) Closing the eye
32
32. Which part of the facial nerve carries taste fibers?
a) Chorda tympani b) Temporal branch c) Greater petrosal nerve d) Buccal branch
a) Chorda tympani
33
33. The facial nerve provides parasympathetic innervation to which gland?
a) Parotid gland b) Submandibular gland c) Thyroid gland d) Adrenal gland
b) Submandibular gland
34
34. Which of the following is a motor branch of the facial nerve?
a) Posterior auricular nerve b) Lingual nerve c) Auriculotemporal nerve d) Inferior alveolar nerve
a) Posterior auricular nerve
35
35. Which cranial nerve is involved in the afferent limb of the corneal reflex?
a) CN V b) CN VII c) CN IX d) CN X
a) CN V
36
36. A lesion affecting the facial nerve proximal to the geniculate ganglion would cause:
a) Loss of taste only b) Loss of motor function only c) Loss of taste and parasympathetic function d) Loss of hearing
c) Loss of taste and parasympathetic function
37
37. Which nerve innervates the stapedius muscle?
a) Trigeminal nerve b) Facial nerve c) Glossopharyngeal nerve d) Hypoglossal nerve
b) Facial nerve
38
38. The “To Zanzibar By Motor Car” mnemonic is used to remember:
a) Branches of the trigeminal nerve b) Branches of the facial nerve c) Cranial nerve nuclei d) Steps in motor control
b) Branches of the facial nerve
39
39. What is a distinguishing feature of a lower motor neuron lesion of the facial nerve?
a) Only the lower face is affected b) Only the upper face is affected c) The entire ipsilateral face is affected d) Bilateral facial weakness
c) The entire ipsilateral face is affected
40
40. Which cranial nerve provides general sensory innervation to the auricle?
a) CN V b) CN VII c) CN VIII d) CN IX
b) CN VII
