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Cranial Nerves of the Dog
n/a
31
Anatomy
Professional
11/18/2011

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Term
CN I
Definition
olfactory n.
Term
CN II
Definition
optic n.
Term
CN III
Definition
oculomotor n.
Term
CN IV
Definition
trochlear n.
Term
CN V
Definition
trigeminal n.
Term
branches of the trigeminal n.
Definition
opthalmic br.
maxillary br.
mandibular br.
Term
CN VI
Definition
abducens n.
Term
CN VII
Definition
facial n.
Term
CN VIII
Definition
vestibulocochlear n.
Term
CN IX
Definition
glossopharyngeal n.
Term
CN X
Definition
vagus n.
Term
CN XI
Definition
accessory n.
Term
CN XII
Definition
hypoglossal n.
Term
olfactory n.
Definition
functions in olfaction
Term
optic n.
Definition
functions in vision
Term
oculomotor n.
Definition
ventral oblique m.
dorsal, ventral & medial rectal mm.
levator palpebrae superioris m.
parasympathetic fibers to sphincter mm. of iris
ciliary m.
Term
trochlear n.
Definition
dorsal oblique m.
Term
opthalmic br. of trigeminal n.
Definition
sensory to & around eye
Term
maxillary br. of trigeminal n.
Definition
sensory to & around superior arcade & lip
Term
mandibular br. of trigeminal n.
Definition
sensory to & around interior arcade, lip & tongue
mm. of mastication except caudal half of digastricus m.
Term
abducens n.
Definition
lateral rectus m.
retractor bulbi mm.
Term
facial n.
Definition

motor to most mm. of facial expression and caudal half of digastricus m.

taste sensation (rostral 2/3 of tongue) parasympathetic fibers to lacrimal, mandibular & sublingual glands

sensory to soft palate & nasopharynx

Term
vestibulocochlear n.
Definition
balance & audition
Term
glossopharyngeal n.
Definition

taste sensation (caudal 1/3 of tongue) parasympathetic to parotid & zygomatic salivary glands

sensory to pharynx

motor to pharyngeal mm.

Term
vagus n.
Definition
motor to smooth m. & glands of respiratory & digestive system and heart
sensory to respiratory & digestive systems
motor to mm. of pharynx & larynx
some taste fibers from pharynx
some sensory fibers from external auditory canal
Term
accessory n.
Definition
motor to trapezius m.
Term
hypoglossal n.
Definition
motor to extrinsic & intrinsic mm. of tongue
Term
exits from optic canal
Definition
optic n. (II)
Term
exits from orbital fissure
Definition

oculomotor (III)

trochlear (IV)

opthalmic br. of trigeminal (V)

abducens (VI)

Term
exits from tympano-occipital fissue
Definition
glossopharyngeal (IX)
vagus (X)
accessory (XI)
Term
contain parasympathetic fibers
Definition
oculomotor (III)
facial (VII)
glossopharyngeal (IX)
vagus (X)
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