Cranial Nerves Flashcards by Trip Heckert

What four Cranial nerves are involved in visceral motor functions?

Vagus, Glossopharyngeal, Occulomotor, Facial

How well did you know this?

Not at all

Perfectly

What cranial nevers are associated with the eye?

Optic, Occulomotor, Trochlear, Abducens

How well did you know this?

Not at all

Perfectly

What cranial nerves are involved with special sense?

Olfactory, Optic, Vestibulochochlear

How well did you know this?

Not at all

Perfectly

What is the name for the 1st pharyngeal arch?

Mandibular

How well did you know this?

Not at all

Perfectly

The first pharyngeal arch is associated with what CN?

Trigeminal (muscles of mastication, tensor tympany, tensor veli palatini, mylohyoid)

How well did you know this?

Not at all

Perfectly

What is the name of the 2nd pharyngeal arch?

Hyoid

How well did you know this?

Not at all

Perfectly

The second pharyngeal arch is associated with which CN?

Facial (muscles of facial expression, stapedius, sylohyoid)

How well did you know this?

Not at all

Perfectly

What happens when the maxillary process of the 1st arch does not completely form?

Cleft palate

How well did you know this?

Not at all

Perfectly

Which CN is the 3rd pharyngeal arch associated with, and what muscle is it associated with?

Glossopharyngeal (stylopharyngeus)

How well did you know this?

Not at all

Perfectly

What CN are the 4th and 6th arches associated with?

Vagus

How well did you know this?

Not at all

Perfectly

What are the three branches of the trigeminal nerve?

V1 (opthalic)

V2 (maxillary)

V3(mandibular)

How well did you know this?

Not at all

Perfectly

The vestibulochochlear CN has two functions, what are they?

vestibular - balance

chochlear - hearing

How well did you know this?

Not at all

Perfectly

What is somatic motor derived from?

somites

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Masticator facial

Branchial motor, 5, muscles of mastication

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Facial

branchial motor, 7, muscles of facial expression

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Ambiguous

Branchial motor, 9 and 10, muscles of pharynx and larynx

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Accessory

branchial motor, 9, trapezius and sternomastoid

SHRUG YOUR SHOULDERS

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Oculomotor

Somatic motor, 3, all eye muscles except superior oblique (trochlear) and lateral rectus (abducens)

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Trochlear

Somatic motor, 4, superior oblique

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Abducens

Somatic motor, 6, lateral rectus

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Hypoglossal

Somatic motor, 12, tongue muscles

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Edinger-Wastphal

Visceral motor, 3, ciliary muscle, constrictor pupillae

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Superior salivatory

Visceral motor, 7, all glands of the head except integumentary and parotid

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus:

Inferior salivatory

Visceral motor, 9, parotid gland

How well did you know this?

Not at all

Perfectly

State the associated nerve, type of modality, and function based on the following nucleus: Dorsal vagus

Visceral motor, 10, thoracic viscera and abdominal viscera

State the associated nerve, type of modality, and function based on the following nucleus: Solitarius

Visceral sensory, 9 and 10, visceral reflexes like nausea BUT NOT PAIN

State the associated nerve, type of modality, and function based on the following nucleus: Trigeminal

General sensory, 5 7 9 10, pain temperature touch

State the associated nerve, type of modality, and function based on the following nucleus: mitral cells of olfactory bulb

special sense, 1, smell

State the associated nerve, type of modality, and function based on the following nucleus: ganglion cells of retina

special sense, 2, vision

State the associated nerve, type of modality, and function based on the following nucleus: Gustatory

special sense, 7 and 9, taste GUSHERS ARE TASTEY

State the associated nerve, type of modality, and function based on the following nucleus: Vestibular

Special sense, 8, Balance

State the associated nerve, type of modality, and function based on the following nucleus: Chochlear

special sense, 8, hearing

All sympathetic fibers into the head are post or pre ganglionic?

post

Where do the preganglionic parasympathetic fibers arise from and at what 4 ganglia? What do they piggyback on?

Brain stem, cilliary, pterygopalatine, otic, submandibular Trigeminal

A lesion to the optic nerve would have what effect on the eye?

lose that eye's vision

A lesion to the chiasmal would have what effect on the eye?

lose lateral field of vision

A lesion to the optic tract would have what effect on the eye?

FILL IN after look up

State the origin, associated muscle, and function: Abducens

origin: pontine nucleus in PONS Muscle: lateral rectus function: outward pull of eye

State the origin, associated muscle, and function: Trochlear

origin: trochlear nucleus within the mesencephalon Muscle: superior oblique function: down and out movement of eye

If a patient had occulomotor palsy you would most likely see:

Eye moves down and out eye dilated (no parasympathetics from CN3)

What are the nerves directly associated with CN V1?

frontal nerve lacrimal nerve nasociliary nerve super orbital nerve

What are the nerves directly associated with CN V2?

Zygomatic nerve Infra-orbital nerve superior alveolar nerves (anterior, middle, posterior) - teeth

What are the nerves directly associated with CN V3?

meningeal branch auriculotemporal nerve buccal nerve (cheek) lingual nerve inferior alveolar nerve (lower teeth) mental nerve (chin)

Which CN is associated with the anterior 2/3 of the tongue?

Facial via the chorda tympany

Which CN is associated with the posterior 1/3 of the tongue?

Glossopharyngeal

What nerves are associated with the visceral motor portion of the Facial nerve? (2)

(1) Greater pitrosal nerve (synapses at the ptergopalatine gland and goes to the lacrimal gland) (2) Chordae Tympony

What nerves are associated with the special sensory portion of the facial nerve?

chorda tympony (piggy backs on V3 to the lingual nerve)

The brachial motor portion of the facial nerve is associated with what actual movement?

facial expression

The visceral sensory component of the glossopharyngeal nerve is associated with what?

Carotid body and sinus -\> blood pressure

Where do the cells for the chochlear portion of CN8 originate?

chochlea of inner ear

Where do the cells for the vestibular portion of CN8 originate?

hair cells in the vestibule of the inner ear

State the actions of the Vagus nerve's: Brachial motor Visceral motor Visceral sensory special sensory somatic sensory

Brachial:constrict pharynx (speech), striated muscles in superior 2/3 of esophagus Visceral motor: para innervation to digestive tract, heart, etc Visceral sensory: same thing as viseral motor but sensation Special sensory: taste from epiglottis and palate Somatic sensory: sensation from auricle, external acustic meatus

The somatic motor action associated with the hypoglossal nerve is: Nerve cell bodies located at?

motor to intrinsic and extrinsic muscles of the tongue Cell bodies: medulla

Spinal Accessory's nerve cell body location and main action?

Somatic motor: trapezius and sternocleidomastoid Cell bodies: spinal cord

Function of the: Greater petrosal nerve

o Smooth muscle in lacrimal gland and nasal mucosa o Lesser petrosal from glossopharyngeal which will go to the parotid

Function of the: Corda typmani

o Carries pregang symp via facial nerve that will provide visceral motor to sublingual and submandibular glands o Carries special sense taste to anterior 2/3 of tongue

What function does the sympathetic division of the ANS serve in terms of vision? a. Pupil constriction b. Pupil dilation

The post-synaptic (post-ganglionic) axons that stimulate tear production in the lacrimal glands are delivered via which cranial nerve? a. Oculomotor (CN III) b. Facial nerve (CN VII) c. Glossopharyngeal nerve (CN IX) d. Trigeminal nerve (CN V)

The pre-synaptic (pre-ganglionic) axons that provide the mucous membranes of the nasal passages are from the? a. Oculomotor nerve (CN III) b. Facial nerve (CN VII) c. Glossopharyngeal nerve (CN IX) d. Trigeminal nerve (CN V)

You are home for a special family gathering and looking forward to your favorite meal. After a wonderful dinner, you realize that you enjoyed yourself way too much due to the awful stretching sensation in your stomach. In terms of innervation, this is an example of you body’s \_\_\_\_ division letting you know you’re full. a. Somatomotor b. Somatosensory c. Visceral sesory d. Visceral motor

In the spinal nerve pathway, the post-ganglionic axon enters the spinal nerve via the? a. Spinal nerve b. Gray ramus (of the rami communicantes) c. White ramus (of the white rami communicantes) d. Spinal cord

b. Gray ramus (of the rami communicantes)

Autonomic plexuses are networks of? a. Postganglionic sympathetic and pre-ganglionic parasympathetic axons b. Pre-ganglionic sympathetic and post-ganglionic parasympathetic axons c. Only sympathetic axons d. Only parasympathetic axons

An autonomic reflex functions to: a. Maintain homeostasis in the body b. Allow you to “cry on demand” c. Help you keep your balance when walking

Pre-ganglionic sympathetic neuron cell bodies are housed within: a. The brain stem b. The lateral horn of the entire spinal cord c. The lateral horn of T1 – L2 of the spinal cord d. Sympathetic chain ganglia

Another phrase describing parasympathetic innervation in the body is a. Fight or flight b. Stand and deliver c. Craniosacral outflow d. Thoracolumbar outflow

The portion of the adult brain including the epithalamus, thalamus, and hypothalamus is derived from which secondary brain vesicle? a. Telencephalon b. Diencephalon c. Myelencephalon d. Metencephalon e. Mesencephalon

b. Diencephalon

Which cranial foramen permits passage of the mandibular nerve (V3)? a. Foramen ovale b. Foramen spinosum c. Foramen rotundum d. Jugular foramen

a. Foramen ovale

A 65 year old women presents with small blister-like sores on her forehead stretching to the crown of her head, on the upper, but not the lower eyelid, and onto the bridge of her nose. She is diagnosed with shingles (Herpes zoster). What division of the trigeminal nerve (CN V) is infiltrated by the virus? a. Maxillary b. Cervical c. Opthalmic d. Mandibular

c. Opthalmic

Special sensory taste is perceived in the posterior 1/3 of the tongue via the a. Chorda tympani b. Lingual nerve c. Glossopharyngeal nerve (CN IX) d. Mandibular division

c. Glossopharyngeal nerve (CN IX)

Biting the tip of your tongue sends afferent signals to the brain via the a. Glossopharyngeal nerve (CN IX) b. Lingual nerve (mandibular division CN V) c. Vagus nerve (CN X) d. Chorda tympani

d. Chorda tympani

A boy age 12 has been diagnosed with lime disease. He presents with flaccid facial muscles on the left side of his face making it difficult to keep fluid in his mouth when drinking and leading to an inability to close his eye on the effected side. He is diagnosed with Bell’s palsy, which cranial nerve has been effected? a. Opthalmic division of the trigeminal (CN V) b. Tympanic nerve (branch of glossopharyngeal (CN IX) c. Chorda tympani d. Facial nerve (CN VII)

d. Facial nerve (CN VII)

Which of the following ocular muscles is innervated by the trochlear nerve (CN IV)? a. Inferior rectus b. Lateral rectus c. Superior oblique d. Inferior oblique

c. Superior oblique

Which of the following muscles is supplied by the glossopharyngeal nerve (CN IX) a. Stylopharyngeus b. Tensor tympani c. Styloglossus d. Genioglossus

a. Stylopharyngeus

Which cranial nerve supplies pre-ganglionic parasympathetic fibers to the lacrimal gland? a. Trochlear nerve (CN IV) b. Facial nerve (CN VII) c. Trigeminal (CN V) d. Hypoglossal nerve (CN XIII)

b. Facial nerve (CN VII)

Which cranial nerve supplies pre-ganglionic parasympathetic fibers to the parotid gland? a. Glossopharyngeal nerve (CN IX) b. Facial nerve (CN VII) c. Vagus nerve (CN X) d. Oculomotor nerve (CN III)

a. Glossopharyngeal nerve (CN IX)

Which cranial nerve permits our dexterous human toungues to create consonants and “package” our vowel sounds? a. Chorda tympani b. Hypoglossal nerve (CN XII) c. Lingual nerve (V3 of the trigeminal nerve (CN V) d. Mental nerve (V3 of trigeminal nerve (CN V))

b. Hypoglossal nerve (CN XII)

Which of the following nerves would be categorized as carrying / supplying somatic motor as opposed to branchial motor nerve fibers? a. Trigeminal (CN V) b. Oculomotor (CN III) c. Facial (CN VII) d. Vagus (CN X)

b. Oculomotor (CN III)

Cranial Nerves Flashcards

(77 cards)