Cranial Nerves Flashcards
where does the olfactory nerve exit the skull?
cribiform plate
Where does the optic nerve exit the skull?
optic canal
Where does the obitulomotor nerve exit the skull?
superior orbital fissure
where does the trochlear nerve exit the skull?
superior orbital fissure
Where does the trigeminal nerve (v1) exit the skull?
superior orbital fissure
Where does the trigeminal nerve (v2) exit the skull?
foramen rotundum
Where does the trigeminal nerve (v3) exit the skull?
formaen ovale
Where does the abducens nerve exit the skull?
superior orbital fissure
Where does the facial nerve exit the skull?
inferior acoustic meatus
Where does the vestibulocochlear nerve exit the skull?
inferior acoustic meatus
Where does the glossopharyngeal nerve exit the skull?
jugular foramen
Where does the vagus nerve exit the skull?
jugular foramen
Where does the accessory nerve exit the skull?
jugular foramen
Where does the hypoglosseal nerve exit the skull?
hypoglosseal nerve
What does the olfactory nerve do?
provides sense of scent (special afferent)
What does the optic nerve do?
provides sense of vision, retina (special afferent)
What does the oculomotor nerve do?
raises the eyelid (somatic motor), constriction/dilation (visceral motor)
What does the trochlear nerve do?
keeps eyes level when tilting head (somatic motor)
What does the abducens nerve do?
moves the eyes away from the midline (abduction - eye towards the nose).
What does the trigeminal nerve do?
provides innervation to the face via opthalamic, maxillary and mandibular nerves.
The V1 supraorbital nerve is a branch of what?
opthalmic
The V2 infraorbital nerve is a branch of what?
maxillary
The V3 mandibular nerve is a branch of what?
mental
What does the ophthalmic nerve do?
innervates the scalp, eyes, nose and forehead
What does the maxillary nerve do?
innervates the cheeks, area below the eyes
What does the mandibular nerve do?
innervates the chin, mandibular teeth, etc.
What does the facial nerve do?
innervates anterior 2/3 of tongue, the ear, submandibular galnds, and muscles.
What does the vestibulocochlear nerve innervate?
auditory and balance information
What does the glossopharyngeal nerve innervate?
stylopharyngeus (swallowing), parotid gland, ear posterior 1/3 of tongue
What does the vagus nerve innervate?
muscles of pharynx, tongue and larynx, smooth muscle glands, skin at back of ear, external acoustic meatus.
What does the accessory nerve innervate?
sternomastoid and trapezius
What does the hypoglosseal nerve innervate?
the tongue
What is the modality of the olfactory nerve?
special afferent
What is the modality of the optic nerve?
special afferent
What are the two modalities of the oculomotor nerve?
somatic motor and visceral motor
What are the modalities of the trochlear nerve?
somatic motor
What are the modalities of the trigeminal nerve?
brachial motor (visceral efferent), general sensory
What are the modalities of the abducens nerve?
somatic motor
What are the modalitiles of the facial nerve?
brachial motor, visceral motor, facial expression, general sensory
What are the modalities of the vestibulocochlear nerve?
special sensory
What are the modalities of the glossopharyngeal nerve?
brachial motor, visceral motor, visceral sensory, general sensory
Wha are the modalities of the vagus nerve?
brachial motor, visceral motor, visceral sensory, general sensory
What is the modality of the accessory nerve?
Brachial motor
What is the modalitiy of the hypoglossal nerve?
somatic motor.
What does the facial nerve do when it synapses onto the pterygopalatine ganglion?
tear/mucuous/savliva production (lacrimal gland)
What does the facial nerve do when it synapses onto the submandibular gland?
saliva production
What does the glossopharyngeal nerve do when it synapses to the submandibular gland?
saliva production in the submandibular/sublingual glands
