Cranial Nerve Examination Flashcards
What is cranial nerve 1
Olfactory nerve
What is cranial nerve 2
Optic nerve
What is cranial nerve 3
Oculomotor nerve
What is cranial nerve 4
Trochlear nerve
What is cranial nerve 5
Trigeminal nerve
What is cranial nerve 6
Abducens nerve
What is cranial nerve 7
Facial nerve
What is cranial nerve 8
Vestibulocochlear nerve
What is cranial nerve 9
Glossopharyngeal nerve
What is cranial nerve 10
Vagus nerve
What is cranial nerve 11
Accessory nerve
What is cranial nerve 12
Hypoglossal nerve
What is role of the olfactory nerve
Sense of smell
What is the role of cranial nerve 1
Sense of smell
What is the role of the optic nerve
Vision - pupillary light reflex
What is the role of cranial nerve 2
Vision - pupillary light reflex
What is the role of oculomotor nerve
Extraocular muscles and pupillary constrictor muscles, pupillary light reflex
Levator palpebrae superiosis, inferior oblique, and superior, medial and inferior recti
What is the role of cranial nerve 3
Extraocular muscles and pupillary constrictor muscles, pupillary light reflex
Levator palpebrae superiosis, inferior oblique, and superior, medial and inferior recti
What does cranial nerve 3 palsy cause
Down and out eye
What is the role of the trochlear nerve
Extraocular superior oblique muscles - assist in depressing and abducting the eye
What is the role of cranial nerve 4
Extraocular superior oblique muscles - assist in depressing and abducting the eye
What is the role of the trigeminal nerve
3 divisions
V1 ophthalmic - sensory above the eyelid
V2 maxillary - sensory lower eye lid to upper lip
V3 mandibular - sensory to below upper lip, muscle of mastication
What is the role of cranial nerve 5
3 divisions
V1 ophthalmic - sensory above the eyelid
V2 maxillary - sensory lower eye lid to upper lip
V3 mandibular - sensory to below upper lip, muscle of mastication
What is the role of the abducens nerve
Innervates the lateral rectus muscle - eye abduction
What is the role of cranial nerve 6
Innervates the lateral rectus muscle - eye abduction
What is the role of the facial nerve
Somatic - skin behind the ear
Taste of anterior 2/3 of the tongue
Parasympathetic to the lacrimal, sublingual and submandibular glands
Muscle of facial expression
What is the role of cranial nerve 7
Somatic - skin behind the ear
Taste of anterior 2/3 of the tongue
Parasympathetic to the lacrimal, sublingual and submandibular glands
Muscle of facial expression
What is the role of the vestibulocochlear nerve
Special somatic afferent fibres for hearing and balance
What is the role of cranial nerve 8
Special somatic afferent fibres for hearing and balance
What is the role of glossopharyngeal nerve
Sensation from the posterior 1/3 of the tongue, pharynx
Taste to posterior 1/3 of tongue
Sensation from the carotid body and carotid sinus (baroreception and chemoreception)
Parasympathetic to parotid glands
Motor to stylopharyngeus
What is the role of cranial nerve 9
Sensation from the posterior 1/3 of the tongue, pharynx
Taste to posterior 1/3 of tongue
Sensation from the carotid body and carotid sinus (baroreception and chemoreception)
Parasympathetic to parotid glands
Motor to stylopharyngeus
What is the role of the vagus nerve
Somatic to skin around ear
Taste and sensation to epiglottis
Sensory information to body viscera
Parasympathetic to glands of GI tract
Motor innervation to soft palate, pharnyx and larynx
What is the role of cranial nerve 10
Somatic to skin around ear
Taste and sensation to epiglottis
Sensory information to body viscera
Parasympathetic to glands of GI tract
Motor innervation to soft palate, pharnyx and larynx
What is the role of accessory nerve
Special visceral efferent fibres to the trapezius and sternocleidomastoid
What is the role of cranial nerve 11
Special visceral efferent fibres to the trapezius and sternocleidomastoid
What is the role of hypoglossal nerve
Somatic efferent fibres for controlling tongue muscles
