Cranial Nerves Flashcards
Optic
Name the ganglion and give the foramen.
Optic ( II )
Parasympathetic Division: NONE
Optic Canal
Olfacory
Name the ganglion and give the foramen.
Olfactory ( I )
Parasympathetic Division: NONE
Cribiform Plate
Oculomotor
Name the ganglion and give the foramen.
Oculomotor ( III )
Parasympathetic Division: Ciliary Ganglion
Superior Orbital Fissure
Trochlear
Name the ganglion and give the foramen.
Trochlear ( IV )
Parasympathetic Ganglion: NONE
Superior Orbital Fissure
Trigeminal
Name the ganglion and give the foramen.
Trigeminal ( V )
Parasympathetic Division: None
V1: Superior Orbital Fissure, V2: Foramen Rotundum, V3: Foramen Ovale
Abducent
Name the ganglion and give the foramen.
Abducent ( VI )
Parasympathetic Division: None
Superior Orbital Fissure
Facial
Name the ganglion and give the foramen.
Facial ( VII )
Parasympathetic Division: Pterygopalatine (Superior) & Submandibular (Inferior)
Internal Acoustic Meatus
Vistibulocochlear
Name the ganglion and give the foramen.
Vestibulocochlear ( VIII)
Parasympathetic Ganglion: None
Internal Acoustic Meatus
Glossopharyngeal
Name the ganglion and give the foramen.
Glossopharyngeal ( IX )
Parasympathetic Division: Otic Ganglion
Jugular Foramen
Vagus
Name the ganglion and give the foramen.
Vagus ( X )
Parasympathetic Division: Goes to organs
Jugular Foramen
Accessory
Name the ganglion and give the foramen.
Accessory ( XI )
Parasympathetic Division: None
Jugular Foramen
Hypoglossal
Name the ganglion and give the foramen.
Hypoglossal ( XII )
Parasympathetic Division: None
Hypoglossal Canal
What does the oculomotor innervate?
Levator palpebrae, Superior rectus, Medial Rectus, inferior Rectus, Inferior oblique
What does the trochealr innervate?
Superior Oblique
What does the abducens innervate?
Lateral Rectus
What does the olfactory innervate?
the nose for smell
What does the optic innervate?
goes from the retina to the brain.
Optic chiasm –> optic tracts travel to lateral geniculate nucleus of thalamus; information is forwarded to the occipital lobe
What does the Trigeminal innervate?
muscles of mastication, tensor tympani, tensor palatini, mylohyoid, anterior belly of digastric. The general sensory innervates the face and scalp conj, bulb of eye, mucosus membranes or paranasal sinuses and nasal oral cavities include tongue and teeth, tympanic membrane. The meninges of the anterior and middle cranial fossae
Explain the branchial motor functions of the Facial Nerve
to supply the stapedius, stylohyoid, posterior belly of digastric muscles, the muscels of facial expression , including buccinator, platysma and occipitalis muscles.
Explain the visceral motor functions of the facial nerve
for stimulation of the lacrimal, submandibular, and sublingual glands, as well as the mucous membrane of the nose, and hard and soft palates.
Explain the general sensory functions of the facial nerve
to supply the skin of the concha of the auricle, a small area of skin behind the ear, and possible to supplement V3, which supplies the wall of the acoustic meatus and external tympanic membrane
Explain the special sensory of the facial nerve
For taste from the anterior two-thirds of the tongue and the hard and soft palates.
What nerve(s) go through the Cribiform Plate?
CN I
What nerve(s) go through the Optic Canal?
CN II
What nerve(s) go through the Superior Orbital Fissure?
CN III, IV, V(V1), VI
What nerve(s) go through the foramen Rotundum?
CN V(V2)
What nerve(s) go through the foramen Ovale?
CN V (V3)
What nerve(s) go through the internal acousitc Meatus?
CN VII, VIII
What nerve(s) go through the Jugular Foramen?
CN IX, X, XI
What nerve(s) go through the hypoglossal Canal?
CN XII
