cranial nerves 3-6 Flashcards
oculomotor nucleus is which type of nerve
somatomotor
the accessory oculomotor nucleus
parasympathetic ( general visceromotor)
the oculomotor nerve has two branches?
superior and inferior
the superior branch supplies what?
the superior rectus muscle
levator palpebrae superioris
the inferior branch of the oculomotor supplies what?
medial rectus
inferior rectus
inferior oblique
the accessory oculomotor nerve first goes where and then supplies what?
the preganglionic fiber goes to the ciliary ganglion
from there the secondary fiber goes to the ciliary muscle and sphincter pupilae
the trochlear nerve is what type?
general somatomotor
the trochlear nerve supplies what?
superior oblique muscle
the trigeminal nerve have 3 branches
ophthalmic, maxillary, madibular
the ophthalmic first divides into 3 main branches
lacrimal
frontal
nasociliary
the lacrimal nerve supplies what?
skin of the lateral corner of the eye
the lacrimal gland is supplies by a communicating branch from post ganglionic parasymp fibers of the zygomatic
frontal nerve has what branches?
supratrochlear
supraorbital
the supratrochlear and supraorbital supply what?
in general, forhead, upper eyelid, scalp
supratrochlear - medial upper eyelid, central forehead (glabella), root of nose
supraorbital - thru supraorbital notch for conjuctiva, forehead, upper eyelid, scalp, frontal sinus
the nasocilary nerve has which branches?
infratrochlear nerve with the ant and post ethmoidal nerve
long ciliary
communicating
the nasocillary branches supplies generally?
eye, nose, eyelid
long ciliary - dialator pupilae, ciliary muscle, iris, cornea
communicating - sensory fibers
ethmoidal nerves - nasal mucosae
infratrochlear - skin of eyelid, root of nose
the maxillary nerve
ganglionic branches
zygomatic
infraorbital
what are the branches of the zygomatic nerve?
zygomaticofacial
zygomaticotemporal
zygomaticofacial and zygomaticotemporal supply what?
zygomaticofacial - skin of lateral face and cheekbone
zygomaticotemporal - skin of lateral face to orbit
the ganglionic branches have which main branches?
nasal branches, greater palatine, lesser palatine, pharyngeal branches
nasal branches are?
posterior superior lateral, posterior superior medial, and scarpa’s
the posterior superior lateral, posterior superior medial, and scarpa’s nerve supply what?
posterior superior lateral - nasal lateral septum, sup and middle nasal concha, ethmoidal sinus
posterior superior medial - nasal septum
scarpa’s - thru sphenopalatine foramen, thru incisive foramen for mucous membrane of hard palate
the greater palatine nerve has one additional branch called?
posterior inferior nasal branch
the greater palatine nerve and posterior inferior nasal branch supply what?
greater palatine: mucosa and glands of hard palate, anterior part of soft palate (post synaptic parasymp and sensory fibers)
post inf nasal nerve - to post inf lateral wall of nasal cavity, may arise independ. of the greater palatine n
the lesser palatine nerves supply what? go in which foramen?
usually 2 nerves, they go in lesser palatine foramina.
soft palate mucosa, glands, uvula.
(post synaptic parasymp and sensory fibers)
pharyngeal nerve goes where and supplies what?
thru pharyngeal canal (palatovaginal canal) with sensory and parasymp fibers to nasopharynx mucus glands
what is the relationship of the pharyngeal nerves (nasal, greater and lesser palatine, pharyngeal) to the pterygopalatine ganglion?
they all pass through the pterygopalatine ggl but DO NOT synapse in it
infraorbital nerve has three branches
superior dental plexus:
anterior superior alveolar - incisors, canines
middle superior alveolar - premolars
posterior superior alveolar - maxillary sinus
the infraorbital nerve supplies what area?
skin btw lower eyelid and upper lip, eventually give branches that create dental plexus
