#1
Which cranial nerve is responsible for facial expression?
Facial nerve
ExplanationFacial nerve (VII) is responsible for facial expression.
#2
What is the primary function of the orbicularis oculi muscle?
Closing the eyelids
ExplanationOrbicularis oculi's primary function is closing the eyelids.
#3
Which muscle is primarily responsible for closing the lips?
Orbicularis oris
ExplanationOrbicularis oris is primarily responsible for closing the lips.
#4
What is the primary function of the masseter muscle?
Chewing
ExplanationMasseter muscle's primary function is chewing.
#5
Which facial muscle is involved in wrinkling the forehead?
Frontalis
ExplanationFrontalis muscle is involved in wrinkling the forehead.
#6
Which muscle is responsible for elevating the upper lip, thus contributing to a smile?
Levator labii superioris
ExplanationLevator labii superioris elevates the upper lip, contributing to a smile.
#7
Which branch of the facial nerve innervates the frontalis muscle, which is involved in raising the eyebrows?
Temporal branch
ExplanationTemporal branch of the facial nerve innervates the frontalis muscle for raising eyebrows.
#8
The facial nerve exits the skull through which foramen?
Stylomastoid foramen
ExplanationFacial nerve exits the skull through the Stylomastoid foramen.
#9
The paralysis of which muscle would MOST likely result in an inability to blink?
Orbicularis oculi
ExplanationParalysis of Orbicularis oculi would result in an inability to blink.
#10
Which nerve is responsible for carrying taste sensations from the anterior two-thirds of the tongue?
Facial nerve
ExplanationFacial nerve carries taste sensations from the anterior two-thirds of the tongue.
#11
Bell's Palsy affects the facial nerve. Which of the following symptoms would NOT typically be associated with Bell's Palsy?
Loss of motor function in the lower limbs
ExplanationLoss of motor function in the lower limbs is not typically associated with Bell's Palsy.
#12
Which of the following is NOT a branch of the facial nerve?
Pharyngeal
ExplanationPharyngeal is not a branch of the facial nerve.
#13
Synkinesis is a common sequelae of Bell's Palsy, which is characterized by:
Involuntary movement of facial muscles when other muscles are voluntarily moved
ExplanationSynkinesis in Bell's Palsy involves involuntary facial muscle movement during voluntary muscle movement.
#14
In facial nerve palsy, which of the following signs is commonly observed?
Crocodile tears
ExplanationCrocodile tears are commonly observed in facial nerve palsy.
#15
The chorda tympani nerve, a branch of the facial nerve, carries taste sensations from the anterior two-thirds of the tongue and:
Provides salivary secretions from the submandibular and sublingual glands
ExplanationChorda tympani nerve also provides salivary secretions from the submandibular and sublingual glands.