Cranical Nerves Flashcards
Cranial nerve 1
Olfactory
Cranial nerve 2
Optic
Cranial nerve 3
Occulomotor
Cranial nerve 4
Trochlear
Cranial nerve 5
Trigeminal nerve
V1
Opthalmic
V2
Mandibular
V3
Maxillary
Cranial nerve 6
Abducens
Cranial nerve 7
Facial
Branches of CN7
Temporal Zygomatic Buccal Mandibular Cervical
Cranial nerve 8
Vestibulocochlear
Cranial nerve 9
Glossopharyngeal
Cranial nerve 10
Vagus
Cranial nerve 11
Accessory
Cranial nerve 12
Hypoglossal
Which cranial nerves supply parasympathetic innervation?
3,7,9,10
Where does CN1 exit the skull
Cribriform plate
Where does CN2 exit the skull
Optic canal
Where does CN3 exit the skull
Superior orbital fissure
Where does CN4 exit the skull?
Superior orbital fissure
Where does CN5 V1 exit the skull
Superior orbital fissure
Where does CN5 V2 exit the skull
Foremen rotundum
Where does CN5 V3 exit the skull
Forman’s ovale
Where does CN 6 exit the skull
Superior orbital fissure
Where does CN7 exit the skull
Internal auditory meatus
Where does CN8 exit the skull
Internal auditory meatus
Where does CN9 exit the skull
Jugular foramen
Where does CN10 exit the skull
Jugular foramen
Where does CN11 exit the skull
Jugular foramen
Where does CN12 exit the skull
Hypoglossal canal
Muscles innervated and function of CN1
Olfactory epithelium, olfaction
Muscles innervated by and function of CN2
Retina
Vision
Muscles innervated by CN3 and their function
Superior/middle/inferior rectus, inferior oblique, lavator palpebrae:eyeball movement
Pupillary constrictor, ciliary eyeball muscle:pupillary constriction and accommodation
Muscles innervated by CN4 and their function
Superior oblique
Eyeball movement
Muscles innervated by CN5 and their function
Face, scalp, cornea, nasal and oral cavities, cranial dura matter, mastication muscles, tensor tympani
General sensation, mouth movement, tension of tympanic membrane
Muscles innervated by CN6 and their function?
Lateral rectus, eyeball movement
Muscles innervated by CN7 and their function
Anterior 2/3 tongue, facial expression muscles, stapedius muscle salivary and lacrimal glands
Taste, facial movement, tension of ossicles, salivation and lacrimation
Muscles innervated my CN8 and their function
Cochlea, vestibular apparatus
Hearing, food proprioceptiom
Muscles innervated by CN9 and their function
Eustachian tube, middle ear, carotid body and sinus, pharynx, posterior 1/3 of tongue, styropharyngeus, optic ganglion
General sensation, chemo/bark reception, taste, swallowing, salivation
Muscles innervated by CN10 and their function
Pharynx, larynx, oesophagus and external ear, aortic arch and bodies, thoracic and abdominal viscera, soft palate, cvr resp and gi systems
General and visceral sensation, speech swallowing
Which muscles does CN11 innervate and what is their function?
Sternomastoid, trapezius
Movement of head and shoulders
Muscles innervated by CB12 and their function?
Intrinsic and extrinsic tongue muscles
Tongue kovement
