Crainial Nerves Flashcards
How many pairs of cranial nerves are there?
12 (24 total) CN I - CN XII
What is CN I? What is it’s Function, Origin, Foramen, and Destination?
The Olfactory Nervre
Function: Sensory (smell)
Origin: Olfactory epithelium
Foramen: Olfactory foramina
Destination: Olfactory bulbs
What is CN II? What is it’s Function, Origin, Foramen, and Destination?
The Optic Nerve
Function: Sensory (Vision)
Origin: Retina
Foramen: Optic canal
Destination: diencephalon, then to occipital lobe
What is CN III? What is it’s Function?
The Oculomotor Nerve
Function: Controls extra-ocular eye movements
(Superior, Inferior, and medial rectus) (Inferior oblique)
(Levator palpebrae superioris)
What is CN IV? What is it’s Function?
The Trochlear Nerve
Function: Controls extra-ocular eye muscles (superior oblique)
What is CN V? What is it’s Function?
The Trigeminal Nerve
Function: Mixed function
Ophthalmic: Sensations from the forehead, eyelids, and nose
Maxillary: Sensations from lower eyelid, upper lip, and cheek
Mandibular: Controls mastication
What is CN VI? What is it’s Function?
The Abducens Nerve
Function: Controls eye movements
What is CN VII? What is it’s Function?
The Facial Nerve
Function: Mixed, Sensory (sensations from the face/taste, Motor (controls muscles of the face)
What is CN VIII? What is it’s Function?
The Vestibulocochlear Nerve
Function: Sensory (balance and hearing )
What is CN IX? What is it’s Function, Origin, Foramen, and Destination?
The Glossopharangeal Nerve
Function: Mixed, Sensory (Tongue pain), Motor (Swallowing)
Origin: Sensory (Posterior 1/3 of the tongue), Motor (Salivary gland)
Foramen: Jugular foramen
Destination: Visceral motor (parotid salivary gland, Somatic motor (pharyngeal muscles for swallowing)
What is CN X? What is it’s Function and Origin?
The Vagus Nerve
Function: Mixed, Sensory (information from organs), Motor (Sends information to organs)
Origin: Sensory (From organs), Motor (Medulla oblongata)
What is CN XI? What is it’s Function?
The Accessory Nerve
Function: Motor (Controls stereoclidomastoid, trapezius, palate, pharynx, and larynx muscles
What is CN XII? What is it’s Function?
The Hypoglossal Nerve
Function: Motor (controls tongue movement)
