Head And Neck Flashcards
Optic Canal
CN II, Ophthalmic Artery
Foramina in cribriform plate of ethmoid
CN I
Superior Orbital Fissure
CN III, IV, VI, Ophthalmic nerve (V) and vein
Foramen rotundum
Maxillary Nerve (V)
Foramen Ovale
Mandibular Nerve (V)
Jugular Foramen
CN IX, X, XI
Hypoglossal canal
CN XII
Internal Avoustic Meatus
CN VII, VIII
Foramen Magnum
Medulla and meninges, CN XI spinal roots
Lesion to CN I
Anosmia
Lesion to CN II
Blindness, loss of direct pupillary reflex
Deafness, loss of balance, absence of vestibulocochlear reflexes
CN VIII
Diplopia, PTOSIS, dilated pupil, fixed l
CN III
Diplopia - extorsion of the eye, weakness of downward gaze
CN IV
Diplopia - medial deviation,abductor paralysis(?)
CN VI
Facial hemianesthesia, paralysis of muscles of mastication, deviation of jaw to weak side, loss of general sensation of tongue - anterior 2/3
CN V
Bell’s palsy,facial paralysis, loss of corneal/ blink reflex,hyperacusis,dry mouth,loss of lacrimation, loss of TASTE - anterior 2/3 pf tongue
CN VII
Dysphagia, lossof taste and common sensation of tongue posteriorly, loss of gag reflex, hemianesthesia of pharynx and larynx
CN X
Weakness in turning head toward opposite side and shrugging shoulder
CN XI
Hemiparalysis of tongue, deviation towards the weak side
CN XII
Mastication
CN V
CN for facial expression
CN VII facial nerve
CN for degluttition
CN IX Glossopharyngeal
CN for phonation
CN X Vagus
Innervation of the eye
CN III except Superior rectus CN IV and Lateral Rectus CN VI
Structures that may be affected in cavernous sinus thrombosis
CN III, IV, VI, ophthalmic and maxillary divisions of CN V, Internal carotid artery
Nerve supply of muscles of tongue
CN XII except palatoglossus (CN X)
Mucous membrane of tongue
Anterior 2/3 by CN V, Posterior 1/3 by CN IX
Tste buds of tongue
Anterior 2/3 by CN VII, Posterior 1/3 by CN IX
