Cranial Nerves Quiz
CN III is the ________________ nerve.
Oculomotor
CN II Optic Nerve travels through the ________________ before reaching the primary visual cortex.
Thalamus
Cranial nerve nuclei are numbered (top-down/bottom-up).
Top-down
CN V is the ________________ nerve.
Trigeminal
CN IV is the ________________ nerve.
Trochlear
The lower face has (bilateral/unilateral) innervation.
Unilateral
CN ___ ________________ Nerve innervates the muscles of mastication and allows us to open and close the mandible, playing a role in speech.
V Trigeminal
CN ___ ________________ Nerve is composed of 3 divisions of fibers: Ophthalmic, Maxillary, and Mandibular.
V Trigeminal
CN ___ ________________ Nerve is is responsible for touch, pain, and vibration for the face, mouth, and anterior 2/3 of the tongue.
V Trigeminal
Damage to CN ___ ________________ Nerve can result in loss of sensation of the face and difficulty chewing.
V Trigeminal
CN ___ ________________ Nerve is a motor nerve that controls eye movement and rotates the eyes out.
VI Abducens
Damage to the CN ___ ________________ Nerve can be seen as only one eyeball rotating when asking a patient to look either left or right.
VI Abducens
CN ___ ________________ Nerve has a parasympathetic function in the salivary glands to produce saliva to help chew and swallow food.
VII Facial
CN ___ ________________ Nerve innervates the muscles of the face and is responsible for facial expressions such as smiling, angry face, etc.
VII Facial
CN ___ ________________ Nerve is responsible for sensation near the ears and sense of taste in the anterior 2/3 of the tongue.
VII Facial
Damage to CN ___ ________________ Nerve impacts a person's ability to move their face.
VII Facial
CN ___ ________________ Nerve is responsible for sense of taste in the anterior 2/3 of the tongue; whereas CN ___ ________________ Nerve is responsible for sense of taste in the posterior 1/3 of the tongue.
VII Facial; IX Glossopharyngeal
CN ___ ________________ Nerve has two divisions: vestibular and cochlear/acoustic.
VIII Vestibulocochlear
CN ___ ________________ Nerve is responsible for receiving hearing information as well as balance and equilibrium.
VIII Vestibulocochlear
Damage to CN ___ ________________ Nerve can result in hearing loss and balance problems.
VIII Vestibulocochlear
CN X is the ________________ nerve.
Vagus
The __________ branch of VIII Vestibulocochlear Nerve carries the messages of balance and equilibrium tot he brain from the vestibular apparatus and semicircular canals.
Vestibular
CN VIII is the ________________ nerve.
Vestibulocochlear
CN ___ ________________ Nerve carries sensory information from the pharynx, larynx, chest, and abdominal organs to the brain.
X Vagus
CN ___ ________________ Nerve innervates the muscles of the soft palate, pharynx, and larynx.
X Vagus
CN ___ ________________ Nerve is important for swallowing, voice, and control of nasal vs. non-nasal speech sounds.
X Vagus
Damage to the CN ___ ________________ Nerve can result in speech problems, velopharyngeal insufficiency, voice problems, and respiratory distress due to respiratory muscles not being properly controlled.
X Vagus
The parasympathetic function of CN ___ ________________ Nerve innervates the muscles around the heart, lungs, and digestive tract.
X Vagus
CN ___ ________________ Nerve has three branches: Pharyngeal, Superior Laryngeal, and Recurrent Laryngeal.
X Vagus Nerve
CN ___ ________________ Nerve innervates sternocleidomastoid and trapezius muscles that move the head and neck and are important for elevating the sternum and head turning.
XI Accessory
Damage to CN ___ ________________ Nerve can result in a decreased range of motion in the neck, problems turning the head, and weakness in the shoulders.
XI Accessory
CN ___ ________________ Nerve contains motor fibers that innervate the tongue muscles.
XII Hypoglossal
CN ___ ________________ Nerve innervate the intrinsic and extrinsic muscles of the tongue.
XII Hypoglossal
Damage to CN ___ ________________ Nerve can result in loss of control of tongue movement, swallowing difficulties from being unable to adequately chew food, and speech problems.
XII Hypoglossal
_____________ is the sudden onset of paralysis of ipsilateral and lower facial muscles.
Lower Motor Neuron (LMN) Syndrome
CN IX Glossopharyngeal nerve is a (sensory/motor/mixed) nerve.
Mixed
The cranial nerves exit out of the central nervous system through ________________ or ________________, gaps or openings on the ventral surface of the brain.
Foramina, fissures
CN V Trigeminal nerve is a (sensory/motor/mixed) nerve.
Mixed
CN VII Facial nerve is a (sensory/motor/mixed) nerve.
Mixed
CN X Vagus nerve is a (sensory/motor/mixed) nerve.
Mixed
The Mandibular division of CN V Trigeminal Nerve is (sensory/motor/mixed).
Mixed
CN III Oculomotor nerve is a (sensory/motor/mixed) nerve.
Motor
CN IV Trochlear nerve is a (sensory/motor/mixed) nerve.
Motor
CN VI Abducens nerve is a (sensory/motor/mixed) nerve.
Motor
CN XI Accessory nerve is a (sensory/motor/mixed) nerve.
Motor
CN XII Hypoglossal nerve is a (sensory/motor/mixed) nerve.
Motor
There are ________________ pairs of cranial nerves.
12
CN IX is the ________________ nerve.
Glossopharyngeal
CN VI is the ________________ nerve.
Abducens
4 cranial nerve nuclei are located ________________, 4 are located ________________, and 4 are located ________________.
Above the pons; in the pons; in the medulla
CN XI is the ________________ nerve.
Accessory
________________, or loss of sense of smell, can occur as a result of damage to CN ___ ________________ Nerve.
Anosmia; I Olfactory
______________ is a facial nerve dysfunction that results in paralysis of part of the face.
Bell's Palsy
The upper face has (bilateral/unilateral) innervation.
Bilateral
Cranial nerve nuclei are located in the ________________.
Brainstem
Cranial nerves exit from the ________________.
Brainstem
The __________ branch of VIII Vestibulocochlear Nerve receives and carries impulses from the cochlea to the thalamus and primary auditory cortex.
Cochlear
With an upper motor neuron lesion of the CN VII Facial Nerve, the patient will be unable to move the _________ part of the face.
Contralateral
________________ serve as communication between the brain and head/neck.
Cranial nerves
CN VII is the ________________ nerve.
Facial
CN XII is the ________________ nerve.
Hypoglossal
CN ___ ________________ Nerve is the only cranial nerve in which sensory information goes directly to the brain rather than through the thalamus.
I Olfactory
CN ___ ________________ Nerve provides us with our sense of smell; takes information from the nose to the brain.
I Olfactory
Disorders associated with a decreased smell, as a result of damage to CN ___ ________________ Nerve, include Parkinson's, Alzheimer's, and TBI.
I Olfactory
CN ___ ________________ Nerve carries sensory messages from the retina to the brain and allows us to see things.
II Optic
Damage to CN ___ ________________ Nerve can result in visual field loss.
II Optic
CN ___ ________________ Nerve has a parasympathetic function of being a pupil constrictor.
III Oculomotor
CN ___ ________________ Nerve innervates the eye muscles and is responsible for eyeball movement and control of the eyelid.
III Oculomotor
Damage to CN ___ ________________ Nerve can result in ________________, or drooping of the eyelid, as well as loss of pupillary light reflex.
III Oculomotor; Ptosis
CN ___ ________________ Nerve carries motor fibers to the eye muscles, innervating the muscles that control the eyes and allows us to move the eyeballs around.
IV Trochlear
Damage to the CN ___ ________________ Nerve an result in ________________, or double vision as well as difficulty reading and focusing, when looking down.
IV Trochlear; Dipolopia
CN ___ ________________ Nerve innervates the Parotid glands, the largest salivary gland, to regulate the secretion of saliva in the oral cavity.
IX Glossopharyngeal
CN ___ ________________ Nerve innervates the muscles of the pharynx, specifically the stylopharyngeus muscle that plays a role in laryngeal elevation and swallowing.
IX Glossopharyngeal
CN ___ ________________ Nerve relays sensory information from the pharynx, middle ear, and posterior 1/3 of the tongue and is responsible for the gag reflex.
IX Glossopharyngeal
Damage to CN ___ ________________ Nerve can result in loss of sense of taste in the back of the mouth, loss of gag reflex, absent or decreased swallow reflex, and decreased pharyngeal movement when talking and swallowing.
IX Glossopharyngeal
CN ___ ________________ Nerve is responsible for the ________________, a safety mechanism to remove foreign material in the larynx/pharynx.
IX Glossopharyngeal; Gag reflex
With an lower motor neuron lesion of the CN VII Facial Nerve, the patient will be unable to move the _________ part of the face.
Ipsilateral
CN I is the ________________ nerve.
Olfactory
The three divisions of fibers in CN V Trigeminal Nerve ________________, ________________, and ________________.
Ophthalmic, Maxillary, and Mandibular
CN II is the ________________ nerve.
Optic
CN X Vagus Nerve has three branches: ________________, ________________, and __________________.
Pharyngeal, Superior laryngeal, Recurrent laryngeal
CN I Olfactory nerve is a (sensory/motor/mixed) nerve.
Sensory
CN II Optic nerve is a (sensory/motor/mixed) nerve.
Sensory
CN VIII Vestibulocochlear nerve is a (sensory/motor/mixed) nerve.
Sensory
The Maxillary division of CN V Trigeminal Nerve is (sensory/motor/mixed).
Sensory
The Ophthalmic division of CN V Trigeminal Nerve is (sensory/motor/mixed).
Sensory
Cranial nerves can be classified as ________________, ________________, or ________________.
Sensory, motor, mixed