Cranial Nerves Flashcards
Motor to the Dorsal Oblique Muscle
CN IV- Trochlear Nerve
Sensory from the caudal 1/3 of the tongue (taste and touch) and pharyngeal mucosa
Motor to the pharynx
PSNS to parotid and mucosal gland
CN IX- Glossopharyngeal
Test for CN X
Increase heart rate present
Decreased gut sounds present
Gag reflex
CN XI
Spinal Accessory Nerve
Test for CN III
Tracking (Movement of pupil in dorsal, ventral, or medial direction)
Lateral Strabismus present
Droopy upper eyelid
PLR
Test for CN XII
Tongue tone
Tongue atrophy presence
Pull tongue
Watch drinking water
The ___________ goes through the oval foramen.
The Mandibular branch of Trigeminal goes through the oval foramen.
The ____________ goes through the internal acoustic meatus
The Vestibulocochlear Nerve goes through the internal acoustic meatus
CN IV
Trochlear Nerve
Test for CN IV
Presence of oblique deviation of the pupil
_______________
Not obvious in species with round pupils
Pupillary light reflex afferent nerve is ___________ and the efferent nerve is ___________.
Pupillary light reflex afferent nerve is Optic Nerve and the efferent nerve is Oculomotor Nerve.
CN V
Trigeminal
The _________ passes through the cribiform foraminia.
The Olfactory Nerve passes through the cribiform foraminia.
Test for CN II
Menace Response
Obstacle Course
Cotton Ball Test
PLR
Tracking
CN III
Oculomotor Nerve
Sensory from retina (vision)
CN II- Optic Nerve
CN I
Olfactory Nerve
Motor to trapezius, omotransversarious, sternocephalicus, and cleidocephalicus
Motor to larynx (via reccurent laryngeal nerve)
CN XI Spinal Accessory
CN II
Optic Nerve
Test for Mandibular branch of Trigeminal
Touch sensation to lower lip/jaw, auriculotemporal area
Ability to masticate
CN IX
Glossopharyngeal Nerve
CN X
Vagus Nerve
The __________ goes through stylomastoid foramen and internal acoustic meatus.
The Facial Nerve goes through stylomastoid foramen and internal acoustic meatus.
Sensory from lower jaw/teeth, cheek, rostral 2/3 of tongue and auriculotemporal area (touch)
Motor to muscles of mastication (Rostral belly of Digastricus)
Mandibular branch of Trigeminal
CN VII
Facial Nerve
CN VI
Abducens Nerve
Test for CN VII
Droopy muscles of facial expression
Palpebral reflex (failure to close)
Sensory for hearing and balance
CN VIII- Vestibulocochlear
Sensory from olfactory epilthelium (smell)
CN I - Olfactory Nerve
Test for CNI
Olfaction (smell test)
Test for CN IX
Gag reflex
Swallowing
Test for Maxillary branch of Trigeminal
Palpebral reflex: lateral canthus
Touch sensation to upper lip
Efferent stimulation is related to motor/sensory.
Efferent stimulation is related to motor/sensory.
Nerves that pass through the Orbital fissure
CN III - Oculomotor
CN IV - Trochlear
CN V - Opthalmic br. of Trigeminal
CN VI - Abducens
Afferent stimulation is related to motor/sensory.
Afferent stimulation is related to motor/sensory.
Motor to the pharynx and esophagus
Sensory to ear canal and epiglottis
PSNS to heart, lungs and abdomen
CN X - Vagus
Test for CN XI
Atrophy of muscles innervated present
CN VIII
Vestibulocochlear Nerve
Test for CN VI
Tracking (lateral movement)
Medial stribismus present
CN XII
Hypoglossal Nerve
Sensory from globe, periorbita, nasal mucosa, and medial aspect of palpebrae (touch)
Opthalmic branch of Trigeminal Nerve
Palpebral reflex afferent is ________ and the efferent is ___________.
Palpebral reflex afferent is Opthalmic Branch of Trigeminal and the efferent is Facial Nerve.
Motor to muscles of facial expression and caudal belly of digastricus m
Sensory from the rostral 2/3 of the tongue (taste)
PSNS to salivary and lacrimal gland
CN VII- Facial Nerve
Motor to extrinsic and intrinsic muscles of the tongue
CN XII- Hypoglossal
Motor to retractor bulbi muscle and lateral rectus muscle
CN VI - Abducens
Test for Opthalmic branch of Trigeminal
Palpebral reflex: medial canthus
Test for CN VIII
Hearing
Vestibular signs present (Nystagmus, Heat tilt, Circling)
The ___________ goes through the round foramen and rostral alar foramen.
The Maxillary Branch of Trigeminal goes through the round foramen and rostral alar foramen.
Nerves that go through the Jugular Foramen and Tympanooccipital Fissure
CN IX - Glossopharyngeal
CN X- Vagus
CN XI- Spinal Accessory
Motor to DVM Rectus, Ventral Oblique and Levator palpebrae superioris mm
PSNS to ciliary ganglion
CN III - Oculomotor Nerve
The _________ goes through the hypoglossal canal.
The hypoglossal nerve goes through the hypoglossal canal.
Sensory from the upper lip/teeth, nasal mucosa, lateral and ventral aspect of palpebrae (touch)
Maxillary branch of trigeminal
The __________ passes through the optic canal.
The Optic Nerve passes through the optic canal.
