12-9: Cranial Nerves - by answer Flashcards
Which cranial nerves are sensory?
I. Olfactory
II. Optic
VIII. Vestibulocochlear
Which cranial nerves are motor?
III. Oculomotor IV. Trochlear VI. Abducens XI. Accessory XII. Hypoglossal
Which cranial nerves are mixed?
V. Trigeminal
VII. Facial
IX. Glossopharyngeal
X. Vagus
Which cranial nerve is the largest?
V. Trigeminal
Which cranial nerve extends outside of the head and neck?
X. Vagus “wanderer”
Damage to __ results in anosmia.
I. Olfactory
Damage to __ results in diplopia.
III. Oculomotor or IV. Trochlear (double vision)
Damage to __ results in anopsias.
II. Optic
Damage to __ results in ptosis.
III. Oculomotor (drooping eyelids)
Damage to __ results in external strabismus, but damage to __ results in internal strabismus.
III. Oculomotor (eye moves laterally); VI. Abducens (cross eyed)
Dentists block sensation from the __.
V. Trigeminal
Damage to __ results in paralysis of chewing muscles
V. Trigeminal
Damage to __ results in a type of facial neuralgia.
V. Trigeminal (trigeminal neuralgia)
Damage to __ results in Bell’s palsy.
VII. Facial (paralysis of facial muscles on affected side, partial loss of taste)
Damage to ___ results in vertigo.
VIII. Vestibulocochlear
Damage to __ results in nystagmus.
VIII. Vestibulocochlear (rapid, involuntary eye movements)
Damage to __ results in nerve deafness.
VIII. Vestibulocochlear
Damage to __ results in difficulty swallowing or a reduction in saliva production.
IX. Glossopharynglea
Damage to __ results in a loss of taste from the anterior 2/3rds of tongue, but damage to __ results in a loss of taste from the posterior 1/3rd of tongue.
VII. Facial; IX. Glossopharyngeal
Damage to ___ results in loss of voice.
X. Vagus
Damage to __ results in dysphagia or impaired digestion
X. Vagus
Destruction of both of these facial nerves causes death.
X. Vagus
Damage to __ results in inability to shrug shoulders to turn head. Head remains turned towards ___ side.
XI. Accessory; injured
Damage to __ results in difficulty with speech and swallowing.
XII. Hypoglossal
Difficulty with swallowing with a partial loss of taste may indicate damage to ___, but difficulty swallowing and with speech can indicate damage to ___.
IX. Glossopharyngeal; XII. Hypoglossal