Tongue in cheek
Which muscle is responsible for puffing out the cheeks and making sure we don't chew our cheeks?
Buccinator m.
CN X provides major parasympathetic outflow to smooth muscle and glands of the thoracic and abdominal viscera. What effect would CN X have on the heart?
Now, I just fell in love
And I just quit my job
I’m gonna find new drive
Dang, they work me so dang hard
Work by nine, then off past five
And they work my nerves
That’s why I cannot sleep at night
Which CN is Bey referencing? What is one function of each?
CN IX: Glossopharyngeal -see your notes for all functions
CN V: Trigeminal -see your notes for functions
The pupillary light reflex tests which cranial nerves?
CN II and III
What CN (name & #) is responsible for movement of the face? Sensation of the face?
CN VII - Facial
CN V - Trigeminal
The muscles that provide chewing power for breaking down foods are collectively called _____ and innervated by which CN (name & #)?
Muscles of mastication
CN V3
Vagus travels through which foramen of the skull and with which other important structures?
jugular foramen
with CN IX, XI and internal jugular vein
If you don’t seek it, you won’t see it
That we all know (can’t break my soul)
If you don’t think it, you won’t be it
That love ain’t yours (can’t break my soul)
Tryna fake it never makes it
Which cranial nerve allows us to see it or not? Which foramen does it pass through?
CN II Optic
Optic canal
Sensation of the upper eyelid and cornea are provided by which CN (name and #)?
CN V1
A cold sore on the upper lip would transmit pain signals via G-- axons carried by which CN (Name and #)?
Left CN V2 - Maxillary division of Trigeminal
The pain of getting a tongue piercing would most likely be transmitted by which CN (name and #)?
CN V3 Mandibular branch of Trigeminal
What are the GVA fibers of CN X responsible for?
general visceral afferents - sending sensory signals of viscera to brain - chemo & baroreceptors
You won’t break my soul
You won’t break my soul
I’m tellin’ everybody (let’s go, let’s go, let’s go)
Tellin’ everybody
Everybody (ohh, let’s go, let’s go, let’s go)
Everybody
Which specific nerve innervates Queen Bey's voice box allowing her to tell everybody?
CN X Vagus, specifically the recurrent laryngeal nerve
Light is shined into the right eye. Both pupils constrict. Which CN is the problem?
None
Describe the pathway of CN VII and its intracranial and extracranial branches.
pons > internal acoustic meatus > facial canal, where it gives of chorda tympani and greater petrosal branches > exits skull through stylomastoid foramen > then branches into TZBMC branches providing motor to mm. of facial expression
Name the cranial nerves responsible for:
1) movement of the tongue
2) general sensation of the tongue
1) CN XII - Hypoglossal - MOTOR
2) CN V3 - Mandibular division of Trigeminal innervates anterior 2/3 for GENERAL SENSATION
CN IX - Glossopharyngeal innervates posterior 1/3 for GENERAL SENSATION
During routine checkup, physician uses a tongue depressor, asks the patient to phonate, and notes deviation of the uvula to the right. Which CN is the problem?
(left) CN X
I’m lookin’ for motivation
I’m lookin’ for a new foundation, yeah
And I’m on that new vibration
I’m buildin’ my own foundation, yeah
Hold up, oh, baby, baby
These vibrations are transmitted by which type of general axons?
GSA general sensation includes: pain, pressure, proprioception, temperature, touch, tickle and vibration
A piece of sterile gauze is touched to the right eye. The left eye blinks in response. Which CN is the problem?
Right CN VII
A patient presents with facial paralysis. All other functions appear to be normal. Which bony structure would most likely be the site of injury?
Stylomastoid foramen
Describe the SVA distribution of the tongue.
anterior 2/3 CN VII - Chorda tympani branch of facial
posterior 1/3 CN IX - Glossopharyngeal
A 56-year-old man recently underwent surgery to repair an aortic arch aneurysm. How would the patient have presented in this case?
Hoarseness of voice / vocal changes
Got motivation (motivation)
I done found me a new foundation, yeah (new foundation)
I’m takin’ my new salivation (oh, yeah, yeah, yeah, new salivation)
And I’ma build my own foundation, yeah (oh, yeah, yeah, yeah)
Which CNs provide innervation to Bey's salivary glands?
CN VII Facial: chorda tympani innervates submandibular and sublingual glands
CN IX innervates parotid gland, the largest salivary gland
During routine checkup, physician uses a tongue depressor, asks the patient to phonate. What is the expected response?
equal raising (motor constriction) of the soft palate, leading to no deviations in the uvula
A 45-year-old woman is diagnosed with a neuroma. Based on the following signs and symptoms: 1) chronic dry eye, 2) tinnitus, 3) taste changes, where is the site of the problem?
internal acoustic meatus - CN VII and VIII are affected here