Anatomy - Cranial Nerves
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Transcript of Anatomy - Cranial Nerves
Med-Source Anatomy - Cranial Nerves Pg. 1 http://med-source.blogspot.com/
medial rectus (AD) inf. rectus (↓& AD)
inf. oblique (↑& AB) dilator pupillae
nasopalatine n. zygomatic n.
CN I (olfactory)
CN II (optic)
CN III (oculomotor)
CN V (trigeminal)
CN VI (abducens)
cribiform plate
nasal cavity
optic canal
orbit
sup. orbital fissure
levator palpebrae superioris sup. rectus (↑& AD)
sphincter pupillae (constricts pupil)
ciilliary m. (accomodates)
1/6 eyeball m. sup. oblique (↓ & AB)
1/6 eyeball m. lat. rectus (AB)
ophthalmic div. (V1) skin above lacrimal gland
foramen rotundum
CN IV (trochlear)
palate, nasal cavity, maxillary face &
teeth
maxillary div. (V2)
mand. face & ant. 2/3 tongue
muscles of mastication (masseter, temporalis, medial
and lateral pterygoids)
foramen ovale
mandibular div. (V3)
lacrimal n.
frontal sinus, scalp, forehead, medial
upper eyelid
sup. div.
inf. div.
frontal n. supratrochlear n.
supraorbital n.
ethmoid & sphenoid sinuses & upper
nasal cavity nasocilliary n.
post. ethmoidal n.
long cilliary n.
infratrochlear n.
communicating n.
ant. ethmoidal n.
iris & cornea
upper medial eyelid
cilliary ganglia
orbit infraorbital n.
infraorbital foramen
sup. alveolar nn.
buccal n. lingual n. *
inf. alveolar n. mental n.
mandibular foramen
mandibular teeth & gums
chordae tympani (CN VII)
cervical sympathetics
mental foramen
petrotympanic fissure
chin skin
- autonomic - mixed
- branchial motor
- somatic
- general sensory
- motor
- special sensory
auriculotemporal n.
ethmoid and frontal sinuses, ant. cranial fossa meninges, & nose (int. & ext nasal ns.)
Med-Source Anatomy - Cranial Nerves Pg. 1 http://med-source.blogspot.com/
stylomastoid foramen
palatine taste, nasal & oral mucous gland secretion
CN VII (facial)
int. auditory meatus
foramen lacerum
chordae tympani
facial canal in temporal
bone
hiatus
greater petrosal n.
pterygoid canal
pterygopalatine ganglion
deep petrosal n. n. of pterygoid
canal
petrotympanic fissure
ant. 2/3 tongue
sublingual & submandibular
glands
lingual n. (CN V3)
submandibular ganglion
n. to stapedius
post. auricular n. skin over mastoid process, tympanic membrane &
occipital belly of occipitofrontalis m.
temporal n.
zygomatic n.
buccal n.
mandibular n.
cervical n.
muscles
of facial
expression
CN VIII (vestibulocochlear)
vestibular sensation
CN IX (glossopharyngeal) stylopharyngeus m.
- autonomic
- mixed
- motor - branchial motor - somatic
- general sensory - special sensory
hearing
vestibular n.
cochlear n.
vestibular ganglion
spiral ganglion
jugular foramen
sup. & inf. ganglia
otic ganglion
tympanic lesser petrosal n. parotid gland
foramen ovale
auriculotemporal n. (V3)
carotid a. carotid sinus n.
taste ant. 1/3 tongue lingual n.
mucous membranes post. wall of oro & nasal pharynxes
pharyngeal plexus
lacrimal gland
infraorbital fissure
Med-Source Anatomy - Cranial Nerves Pg. 1 http://med-source.blogspot.com/
CN X* (vagus)
(see pg. 2)
CN XI (spinal accessory)
CN IX (glossopharyngeal)
- autonomic - mixed
- motor - branchial motor
- somatic
- general sensory - special sensory
jugular foramen
skin of pinna ext. auditory meatus tympanic membrane
auricular n.
pharyngeal n.
palate & lower pharynx mm. (constrictors, levator veli palatini, palatoglossus,
palatopharyngeus, salpingopharyngeus, uvular )
epiglottis (taste)
laryngopharynx
sup. laryngeal n. int. laryngeal n.
ext. laryngeal n.
mucosa above vocal folds
inf. contrictor m. cricothyroid m.
cricothyroid membrane
reucrrent. laryngeal n. larynx below vocal folds
larynx mm. (NOT cricothyroid)
* carries visceral parasympathetics
SCM & trapezius
foramen magnum
CN XII (hypoglossal)
3 of 4 tongue m.: genioglossus, styloglossus & hypoglossus (NOT pataltoglossus, CN X)
hypoglossal canal