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Innervation
Cranial Nerves
12
Veterinary Medicine
Professional
09/20/2007

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Cards

Term
Olfactory (I)
Definition
Neurosensory cells of nasal epithelium
Term
Optic (II)
Definition
Sensory fibers of the retina
Term
Oculomotor (III)
Definition
Innervates dorsal rectus, ventral rectus, medial rectus and entral obliques; innervates retractor bulbi, levator palpebrae superioris, and intrinsic ciliary muscles. Sensory AND Motor.
Term
Trochlear (IV)
Definition
Innervates dorsal obliques. Sensory AND Motor
Term
Trigeminal (V)
Definition
e branches associated w/ facial and jaw regions:
a. ophthalmic branch - innervates skin in eye and nose region, upper eyelid, eyeball, lacrimal glands
b. maxillary branch; innervates palate, upper lip, upper teeth, vibrissae, skin of upper jaw and vacinity. Sensory AND Motor
Term
Abducens (VI)
Definition
Innervates lateral rectus.
Sensory AND Motor
Term
Facial (VII)
Definition
Innervates facial and digastric muscles; sensory innervation of tastebuds of anteriod 2/3 of tongue; manibular, sublingual, and lacrimal glands.
Sensory AND Motor
Term
Vestibulocochlear (VIII)
Definition
2 branches:
a. Vestibular branch innervates organs of equilibrium, saccule, utricle, and semicircular canals.
b. Cochlear branch innervates the acoustic organs, organs of Corti, in cochlea.
Sensory AND Motor
Term
Glosspharyngeal (IX)
Definition
Innervates pharyngeal muscles; sensory innervation of pharyns and tastebuds of posteria 1/3 of tongue; partoid gland.
Sensory AND Motor
Term
Vagus (X)
Definition
Innervates pharynx, laryns, esophagus, lungs, heart, abdominal viscera.
Sensory AND Motor
Term
Accessory (XI)
Definition
Innervates muscles of shoulder and neck: cleidomastoid, sternmastoid, trapezius muscles.
Motor
Term
Hypoglossal (XII)
Definition
Motor - to muscles of tonue: styloglossus, hyoglossus, genioglossus, and intrinsic muscles of the tongue
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