cranial nerves Flashcards
CN I name
olfactory nerve
CN II name
optic nerve
CN III name
oculomotor nerve
CN IV name
trochlear nerve
CN V name
trigeminal nerve
CN VI name
abducens nerve
CN VII name
Facial nerve
CN VIII name
vestibulocochlear nerve
CN IX name
glossopharyngeal nerve
CN X name
vagus nerve
CN XI name
accessory nerve (spinal accessory nerve)
CN XII name
hypoglossal nerve
CN I sensory function
olfaction (smell)
CN II sensory function
vision
CN III somatic motor function
four eye muscles - medial, superior and inferior rectus and inferior oblique
levator palpebrae superioris (elevation of eyelid
CN III parasympathetic motor (autonomic) function
innervated sphincter pupillae ( pupil constrictor) ciliary muscles to make lens of eye more rounded
CN IV somatic motor function
superior oblique extrinsic eye muscle
CN V sensory function
sensory of anterior scalp, nasal cavity, nasopharynx, entire face, most of oral cavity, teeth, anterior 2/3 of belly, tongue, part of auricle of ear, meninges
CN V somatic motor function
muscles of mastication, mylohyoid, digastric (anterior belly), tensor tympani, tensor veli palatini
CN VI somatic motor function
lateral rectus extrinsic eye muscle
CN VII sensory function
taste from anterior 2/3 of tongue
CN VII somatic motor function
muscles of facial expression, digastric( posterior belly) stylohyoid, stapedius
CN VII parasympathetic motor (autonomic) function
incr. secretion form lacrimal gland of eye, submandibular and sublingual salivary glands
CN VII sensory function
hearing ( cochlear branch) and equilibrium ( vestibular branch)
CN IX sensory function
general sensory and taste from posterior 1/3 of tongue, general sensroy for part of pharynx, visceral sensory from carotid bodies
CN IX somatic motor function
pharyngeal muscle ( stylopharyngeus)
CN IX parasympathetic motor function
increases secretion from parotid salivary gland
CN X sensory function
sensory info from heart, lungs, and most abdominal organs.
sensory info from external acoustic meatus, tympanic membrane, part of pharynx, laryngopharynx,
and larynx
CN X somatic motor function
most pharyngeal muscles, all laryngeal muscles
CN X parasympathetic motor function
smooth muscle and glands of heart, lungs, larynx, most abdominal muscles
CN XI somatic motor function
trapezius muscle, sternocleidomastoid muscle
CN XII somatic motor function
intrinsic and extrinsic tongue muscles
sensory or motor or both?
CN I
sensory
sensory or motor or both?
CN II
sensory
sensory or motor or both?
CN III
motor
sensory or motor or both?
CN IV
motor
sensory or motor or both?
CN V
both
sensory or motor or both?
CN VI
motor
sensory or motor or both?
CN VII
both
sensory or motor or both?
CN VIII
sensory
sensory or motor or both?
CN IX
both
sensory or motor or both?
CN X
both
sensory or motor or both?
CN XI
motor
sensory or motor or both?
CN XII
motor
cranial exit of
CN I
cribiform plate
cranial exit of
CN II
optic canal
cranial exit of
CN III
superior orbital fissure
cranial exit of
CN V
superior orbital fissure
foramen rotundum
foramen ovale
cranial exit of
CN IV
superior orbital fissure
cranial exit of
CN VI
superior orbital fissure
cranial exit of
CN VII
internal acoustic meatus
cranial exit of
CN VIII
interal acoustic meatus
cranial exit of
CN IX
jugular foramen
cranial exit of
CN X
jugular foramen
cranial exit of
CN XI
jugular foramen
cranial exit of
CN XII
hypoglossal canal
